Give the atomic number.
Hydrogen is the lightest element in the periodic table and the most abundant element in the universe.
Give the atomic number.
Hydrogen is a colorless, odorless gas that is used in the production of ammonia and in fuel cells.
Give the atomic number.
Helium is a noble gas known for its low reactivity.
It’s used in a variety of applications, including as a coolant in nuclear reactors and for superconducting magents of MRI machines.
Give the atomic number.
Helium is the second lightest element in the periodic table.
It is used in a mixture of 80% helium and 20% oxygen to create an artificial atmosphere for people working in high pressure conditions such as deep-sea divers.
Give the atomic number.
Lithium is a soft, silver-white metal that is used in the production of ceramics, glass, and lithium-ion batteries.
Give the atomic number.
Lithium is used as a mood stabilizer in the treatment of some psychiatric conditions (e.g. bipolar disorder) however this comes with side-effects and its mechanism in the brain is not fully understood.
Give the atomic number.
Beryllium is a rare, toxic metal that can cause berylliosis (an incurable inflammation of the lungs) if inhaled.
Give the atomic number.
Beryllium is known for its stiffness, light weight, and tolerance to high temperatures, making it a popular material for aerospace applications.
Give the atomic number.
Boron is a metalloid that is used as a neutron absorber in nuclear reactors.
Give the atomic number.
Boron is used in the production of fire-retardant materials, and is an essential mineral component of plant cell walls.
Give the atomic number.
Carbon is a key component in the production of steel, graphite, and carbon fiber materials.
Give the atomic number.
Carbon is present in the atmosphere of many planets as carbon dioxide most commonly.
Give the atomic number.
Nitrogen is used in the production of ammonia, fertilizer, and as a cooling agent in the food industry.
Give the atomic number.
The Nitrogen Cycle is an important process of living organisms that transfers nitrogen between the atmosphere and organic compounds used in life-sustaining processes.
Give the atomic number.
Oxygen is a gas that makes up about 21% of Earth’s atmosphere and first appeared about 2 billion years ago, gaining abundance thanks to photosynthesising organisms.
Give the atomic number.
Oxygen has a wide range of applications, including the production of rocket fuel, welding, and metal cutting.
Give the atomic number.
Fluorine is the most reactive element in the periodic table.
Give the atomic number.
Fluorine has various applications, including in the production of fluorocarbons, rocket fuels, and in the manufacturing of toothpaste.
Give the atomic number.
Neon is a noble gas used in various applications, including in lighting, cryogenics, and in the medical field for diagnostic imaging.
Give the atomic number.
Neon gas is colourless and odourless.
Give the atomic number.
Sodium has many uses, including in the production of soap, paper, and sometimes as a heat exchanger in nuclear reactors.
Give the atomic number.
Sodium is commonly used in the production of semiconductors, and in the manufacturing of flat glass.
Give the atomic number.
Magnesium is a soft, silvery-white metal that is essential for plant and animal life. It is used in the production of aluminum alloys, fireworks, in the treatment of water, and more.
Give the atomic number.
Magnesium is an important component of Grignard reagents, an organic compound used in the chemical industry.
Give the atomic number.
Aluminium is the third most abundant element in the Earth’s crust.
Give the atomic number.
Aluminum is commonly used in the production of cookware, foils, and in the automotive industry for lightweight parts.
Give the atomic number.
Silicon is a metalloid that is essential for the production of semiconductors, silicone polymers, and in the manufacturing of glass.
Give the atomic number.
Silicon is commonly used in the production of solar cells, integrated circuits, and as a key component in the manufacturing of computer chips.
Give the atomic number.
Phosphorus is used in the production of fertilizers, pesticides, and in the manufacturing of semiconductors.
Give the atomic number.
Phosphorus is an essential mineral for all living organisms and a common component of lipids making up animal cell membranes.
Give the atomic number.
Sulfur is used in the production of fertilizers, paper, and in the manufacturing of gunpowder.
Give the atomic number.
Sulfur is commonly used in the production of chemicals, including sulfuric acid, as a bleaching agent, and in the manufacturing of rubber.
Give the atomic number.
Chlorine is a highly reactive, greenish-yellow gas that is essential for human health.
Give the atomic number.
Chlorine is commonly used as a disinfectant in the treatment of swimming pool water, in the manufacturing of paper, and in the production of solvents.
Give the atomic number.
Argon is used in various contexts, including in the production of incandescent light bulbs, welding, and in the medical field for diagnostic imaging.
Give the atomic number.
Argon is used in the space between panes of double-glazed windows.
Give the atomic number.
On average, we consume up to 7g of potassium a day whilst storing approximately 140g in our cells.
Give the atomic number.
Potassium is a soft, silvery alkali metal.
It reacts violently with water and is used in the production of fertilizers, gunpowder, and as a coolant in nuclear reactors.
Give the atomic number.
Calcium is a soft, gray alkaline earth metal.
It is essential for plant and animal life, and is commonly used in the production of cement, mortar, and as a supplement in dairy products.
Give the atomic number.
Calcium is used in building materials, water treatment as calcium chloride, and as a reducing agent in the production of metals like thorium and uranium.
Give the atomic number.
Scandium is a silvery-white transition metal.
It is used in the production of high-intensity lamps, alloys in aerospace components, and in the petrochemical industry.
Give the atomic number.
Scandium is used in the production of aluminum alloys, fuel cells, and as a tracer in oil refineries and natural gas processing.
Give the atomic number.
Titanium is a strong, lightweight transition metal.
It is commonly used in aerospace applications, medical devices, and as a pigment in its titanium oxide form in paint and plastics.
Give the atomic number.
Titanium combines excellent corrosion resistance with high strength and is used in the production of aircraft, orthopedic implants, and sporting goods.
Give the atomic number.
Vanadium is a silvery-gray transition metal.
It is used in the production of steel alloys, some batteries, and as a catalyst in the chemical industry.
Give the atomic number.
Vanadium is used in the production of superconducting magnets and as a corrosion-resistant additive in various alloys.
Give the atomic number.
Chromium is a hard, lustrous transition metal.
It is used in stainless steel, chrome plating, and as a coloring agent in glass and ceramics.
Give the atomic number.
Chromium is used in the production of stainless steel, chrome pigments, and as a catalyst in its chromium oxide form for various chemical reactions.
Give the atomic number.
Manganese is a gray-white transition metal.
It is essential for steel production, batteries, and as a component in fertilizers and pigments.
Give the atomic number.
Manganese is used in the production of steel, ceramics, as a catalyst in chemical reactions, and as a cofactor for many enzymes.
Give the atomic number.
Iron is a transition metal and is the most commonly used metal and is used in construction, vehicles, and as a component in many alloys.
Give the atomic number.
Iron is used in the production of steel, magnets, and as a catalyst in the Haber process for ammonia synthesis.
Give the atomic number.
Cobalt is a hard, lustrous transition metal.
It is used in the production of alloys, magnets, and as a pigment in ceramics and glass.
Give the atomic number.
Cobalt is used in the production of superalloys for jet engines, rechargeable batteries, some cancer treatments in its radioactive form, and as a component in vitamin B12.
Give the atomic number.
Nickel is a silvery-white transition metal.
It is used in the production of stainless steel, coins, and as a catalyst in hydrogenation reactions.
Give the atomic number.
Nickel is an essential element to the growth of some plant species, and navy beans contain a surprisingly high amount of it.
Give the atomic number.
Copper is a soft, malleable transition metal.
It is an excellent conductor of electricity and is used in electrical wiring, plumbing, and various alloys.
Give the atomic number.
Copper was the first metal to be utilised by humans in its alloy form with tin, giving rise to the era known as the Bronze Age.
Give the atomic number.
Zinc is a bluish-white transition metal.
It is used in the production of galvanized steel, batteries, and as a micronutrient in the human body.
Give the atomic number.
Zinc in excess amounts may be carcinogenic, and newly formed zinc (II) oxide may cause a condition called the ‘oxide shakes’ or ‘zinc chills’.
Give the atomic number.
Gallium is a soft, silvery post-transition metal.
It has a low melting point and is used in semiconductors, LEDs, and as a coolant in nuclear reactors.
Give the atomic number.
Gallium is used in the production of semiconductors, mirrors, and as an alloying agent with other metals which reduces their melting-point.
Give the atomic number.
Germanium is a lustrous, hard metalloid.
It is used in fiber optics, and as a catalyst in polymerization reactions such as the production of PET bottles.
Give the atomic number.
Germanium is as an alloying agent in some types of steel, and is a semiconductor.
Give the atomic number.
Arsenic is a gray, brittle metalloid.
It is highly toxic and sometimes used in rat poisons or insecticides, but this application is regulated.
Give the atomic number.
Arsenic is used in the production of alloys, wood preservatives, and as a doping agent in semiconductor materials.
Give the atomic number.
Selenium is a metalloid element.
It is an essential trace element for humans and animals, but in excess it can be toxic, carcinogenic and teratogenic for humans.
Give the atomic number.
Selenium is used in the production of glass, pigments, and has photovoltaic properties (the ability to convert light energy to electrical energy).
Give the atomic number.
Bromine is a reddish-brown halogen liquid.
It was used as a flame retardant, but this application has now been phased out in places such as the USA due to concerns over its toxicity.
Give the atomic number.
Bromine is used in the production of dyes, as well as a disinfectant and in other pharmaceuticals.
Give the atomic number.
Krypton is a colorless, odorless noble gas.
It is used in some lighting, lasers, and as a type of insulating gas in windows and double glazing.
Give the atomic number.
Krypton does not react with other elements under normal conditions, but is reactive enough to form some compounds, unlike most other noble gases.
Give the atomic number.
Rubidium is a soft, silvery-white alkali metal.
It is used in atomic clocks, as a getter in vacuum tubes, and in the production of specialty glasses.
Give the atomic number.
Rubidium is highly reactive and easily combines with other elements.
It is mostly used in research, due to it igniting in air and having a violent reaction with water.
Give the atomic number.
Strontium is a soft, silvery alkaline-earth metal.
It is used in the production of fireworks, flares, and as a colorant in pyrotechnics.
Give the atomic number.
Strontium-90, a radioactive isotope, is present in a nuclear fallout, and has a half-life of 28 years.
If absorbed by the bone tissue, it can destroy the marrow and be carcinogenic.
Give the atomic number.
Yttrium is a silvery transition metal.
It is used in the production of phosphors for fluorescent lamps, lasers, and as a component in superconductors.
Give the atomic number.
Yttrium-90 has a small number of medical uses, such as treatment for liver cancer.
Give the atomic number.
Zirconium is a gray-white transition metal.
It is used in the production of nuclear reactor components, alloys, and as a gemstone substitute.
Give the atomic number.
Zirconium is non-corrosive, and used as a catalyst in some of its compund forms during organic synthesis.
Give the atomic number.
Niobium is a soft, gray transition metal.
It is used in superalloys for jet engines, superconducting magnets, and as a component in stainless steel production.
Give the atomic number.
Niobium is used in MRI equipment and NMR scanners.
Give the atomic number.
Molybdenum is a silvery transition metal.
It is used in the production of high-strength alloys, catalytic converters, and as a corrosion-resistant material.
Give the atomic number.
Molybdenum is a key component for many enzymes in nature, such as the bacterial molybdenum nitrogenase (an enzyme involved in nitrogen fixation).
Give the atomic number.
Technetium is the lightest element with no stable isotopes, due to their half-lives being short relative to the age of the Earth.
It is used in medical imaging and research.
Give the atomic number.
Technetium does not occur naturally and is produced in the form of fission products from uranium nuclear fuel.
Give the atomic number.
Ruthenium is a shiny, silvery, and rare transition metal.
It is used in the production of electrical contacts, as a catalyst, and as a hardening agent.
Give the atomic number.
Ruthenium in some of its compound forms is used in solar cells, which convert light to electrical energy.
Give the atomic number.
Rhodium is a rare, silvery-white transition metal.
It is used in catalytic converters, jewelry, and as a reflective coating in mirrors.
Give the atomic number.
Rhodium is the rarest of all non-radioactive metals, and is commercially obtained as a byproduct of nickel and copper refinement.
It does occur in nature uncombined as well though.
Give the atomic number.
Palladium is a rare, lustrous transition metal.
It is used in catalytic converters, electronics, and as a catalyst in various chemical reactions.
Give the atomic number.
Palladium is sometimes used in the production of ‘white gold’ (a type of alloy).
Give the atomic number.
Silver is a shiny transition metal.
It is used in jewelry, coins, and various industrial applications, including photography due to its photosensitivity, and electronics.
Give the atomic number.
Silver has antibacterial properties, and so silver nanoparticles are sometimes applied in clothing to prevent bacteria digesting sweat and causing unpleasant odors.
Give the atomic number.
Cadmium is a soft, bluish-white transition metal.
It is highly toxic and was used in pigments, as a stabilizer in plastics, and was once commonly in batteries but this application is being phased out.
Give the atomic number.
Cadmium is used to control atomic fission in nuclear reactor rods due to its ability to absorb neutrons.
Give the atomic number.
Indium is a soft, silvery post-transition metal.
Most of it is used to create ITO (indium tin oxide), a major component of touchscreens, solar panels, and flat-screen TVs due to its electrical conductivity, transparency, and strong bonding with glass.
Give the atomic number.
Indium was used extensively to dye fabrics in the Edo period of Japan (1603 - 1867) as alternative colors to indigo were very hard to use on cotton fabric.
Give the atomic number.
Tin is a silvery-white post-transition metal.
It is used in the production of solder alongside lead, cans, and as a protective coating for other metals.
Give the atomic number.
Tin slowly turns to a powder form at temperatures below 13° celsius.
Give the atomic number.
Antimony is a brittle, silvery-white metalloid.
It is used in flame retardant materials, alloys, and as a component in lead-acid batteries.
Give the atomic number.
Antimony and many of its compounds are toxic, however the ancient Egyptians used antimony sulfide for mascara.
Give the atomic number.
Tellurium is a brittle, silver-white metalloid.
It is used in the production of solar cells, thermoelectric devices, and as an additive in steel.
Give the atomic number.
Due to its toxicity, workers exposed to tellurium can develop a garlic-like odor in the mouth known as ‘tellurium breath’.
Give the atomic number.
Iodine is a bluish-black halogen solid.
It is used in pharmaceuticals, dyes, and as a disinfectant.
Give the atomic number.
Louis Daguerre commercialised the use of iodine in photography, developing a technique to produce images on pieces of metal known as daguerreotypes.
Give the atomic number.
Xenon is a colorless, odorless noble gas.
It is used in various applications, including in lighting, anesthesia, and as a propellant in ion thrusters of space equipment.
Give the atomic number.
Xenon is used in camera flash technology, as well as bacterial lamps food preparation and processing sectors.
Give the atomic number.
Cesium is a soft, silvery-gold alkali metal.
It is used in atomic clocks, photoelectric cells, and as a component in drilling fluids.
Give the atomic number.
Cesium is highly reactive and has an explosive reaction when it comes into contact with water.
Give the atomic number.
Barium is a soft, silvery alkaline-earth metal.
It is sometimes used in the production of cathode ray tubes, fireworks, and as a contrast agent in medical imaging.
Give the atomic number.
A ‘barium meal’ or ‘barium enema’ is sometimes used in the medical field as it is a heavy element that scatters x-rays, and thus can help with imaging and people with digestive issues.
Give the atomic number.
Lanthanum is a soft, silvery-white rare earth metal.
It is used in the production of camera lenses, catalysts, and as a component in hybrid car batteries.
Give the atomic number.
In the lighting industry, lanthanum is used extensively in studios and cinema projections to help increase brightness and produce emission spectrums similar to sunlight.
Give the atomic number.
Cerium is a soft, silvery-white rare earth metal and lanthanide.
It is used in the production of catalytic converters, self-cleaning ovens, and as a component in glass polishing as cerium oxide.
Give the atomic number.
Cerium is more abundant than lead or tin, and almost as commonly occuring as zinc.
It is commonly used as a component in lighter flints, as it is the only other element aside from iron that produces sparks when struck.
Give the atomic number.
Praseodymium is a soft, silvery rare earth metal and lanthanide.
It is used in the production of magnets, yellow glass, and as a component in alloying agents.
Give the atomic number.
Praseodymium is used in carbon-arc electrodes for studio lighting and projection, much like many other lanthanide elements.
Give the atomic number.
Neodymium is a soft, silver-white rare earth metal and lanthanide.
It is used in the production of permanent magnets, lasers, and as a component in coloring agents for glass.
Give the atomic number.
Neodymium is used in tanning booth glass as it helps transmit the UV light rays required for tanning but not the heating infrared ones.
Give the atomic number.
Promethium is a radioactive rare earth metal and lanthanide.
It has no stable isotopes and is used in self-luminous paint, nuclear batteries, but mostly research.
Give the atomic number.
Promethium is used in atomic batteries that power items such as pacemakers, guided missiles, and radios.
Give the atomic number.
Samarium is a soft, silver-white rare earth metal and lanthanide.
It is used in the production of magnets, catalysts in some of its compound forms, and as a component in control rods for nuclear reactors.
Give the atomic number.
Samarium, alongside other lanthanide metals, can be found in mineral deposits such as monazite and bastnaesite.
Give the atomic number.
Europium is a soft, silver-white rare earth metal and lanthanide.
It is used in the production of phosphors for fluorescent lamps, television screens, and as a neutron absorber in nuclear reactors.
Give the atomic number.
Europium is used in fluorescent lamps to help balance the cold (blue) lighting by adding warmer (red) lighting.
Give the atomic number.
Gadolinium is a soft, silvery rare earth metal and lanthanide.
It is used in the production of contrast agents for MRI, a new promising contributer to neutron capture therapy, and as a component in magnets.
Give the atomic number.
Gadolinium is used in nuclear reactor cores, due to its ability to absorb neutrons.
Give the atomic number.
Terbium is a silvery-gray rare earth metal and lanthanide.
It is used in the production of phosphors for energy-efficient lighting, lasers, and as a component in magnets which form a basis for loudspeakers that lie on flat surfaces.
Give the atomic number.
Terbium was a key component in the first rewritable compact discs.
Give the atomic number.
Dysprosium is a bright, silvery rare earth metal and lanthanide.
It is used in producing motor and generator magnets for things such as wind turbines, so its demand is increasing.
Give the atomic number.
Dysprosium is highly reactive with water and air, so is seldom used as a pure metal.
Give the atomic number.
Holmium is a bright, silvery rare earth metal.
It is used in the production of some magnets, and as a component in controlling chain nuclear reactions.
Give the atomic number.
Holmium can be found in small quantities as part of mineral deposits of monazite and bastnaesite.
Give the atomic number.
Erbium is a soft, silvery rare earth metal and lanthanide.
It is used in broadband signal amplifiers during optical communication, and as a coloring agent in glass.
Give the atomic number.
Erbium is seldom used in its pure form as it is highly reactive with air and water.
Give the atomic number.
Thulium is a bright, silvery rare earth metal and lanthanide.
It is used in the production of surgically-applied lasers, portable X-ray devices, and as a component in high-temperature superconductors.
Give the atomic number.
Thulium is largely found in the mineral monazite and extracted via ion exchange and solvent extraction.
Give the atomic number.
Ytterbium is a soft, silvery rare earth metal and lanthanide.
It is used in the production of tunable lasers, as an industrial catalyst, and as a component in portable atomic clocks.
Give the atomic number.
Ytterbium, much like many of the other lanthanides, is commonly found in the mineral monazite.
Give the atomic number.
Lutetium is a dense, silvery-white rare earth metal and lanthanide.
Outside of research, it is used in the production of catalysts.
Give the atomic number.
The most common source of lutetium is from the mineral monazite, much like the other lanthanides.
Give the atomic number.
Hafnium is a lustrous, silvery-gray transition metal.
It is used in the production of superalloys, nuclear reactor control rods, and as an insulating component in microchips.
Give the atomic number.
Hafnium can be found in most zirconium ores, of which it makes up about 5%.
Give the atomic number.
Tantalum is a gray-blue transition metal.
It is used in the production of capacitors, surgical implants, and as a corrosion-resistant material in chemical process equipment.
Give the atomic number.
Tantalum is rarely found uncombined in nature, instead mostly occurring in the mineral columbite-tantalite.
Give the atomic number.
Tungsten is a dense, silvery-white transition metal.
It is used in the production of high-temperature alloys, electrical contacts, and as a filament in old-style incandescent light bulbs.
Give the atomic number.
Tungsten is mostly found in the ores wolframite and scheelite.
Some bacterial enzymes utilise tungsten for reduction reactions going from a carboxylic acid to an aldehyde, and so is the heaviest element known to serve a biological role.
Give the atomic number.
Rhenium is a silvery-gray transition metal.
It is used in the production of high-temperature alloys, catalysts, and as a component in X-ray machines.
Give the atomic number.
Rhenium makes for a good catalyst as it is highly resistant to poisoning (i.e. deactivation), and thus is used in hydrogenation reactions with fine chemicals.
Give the atomic number.
Osmium is a hard, brittle, silvery transition metal.
It is used in the production of fountain pen nibs, electrical contacts, as a catalyst, and as a component in alloys.
Give the atomic number.
Osmium is twice as dense as lead, and the densest of all known elements.
Give the atomic number.
Iridium is a dense, silvery-white transition metal.
It is used in the production of spark plugs, crucibles, and as a component in the recordable layer of some DVDs.
Give the atomic number.
Iridium has the highest resistance to corrosion of all known elements, and nearly is as unreactive as gold.
Give the atomic number.
Platinum is a dense, silvery-white transition metal.
It is used in the production of catalytic converters, jewelry, and as a component in electrodes.
Give the atomic number.
Platinum is as non-corrosive as gold, and most of its commercial production yields from South Africa.
Give the atomic number.
79
Gold is a dense, yellow transition metal.
It is highly valued for its beauty and rarity, with it being used in jewelry, electronics, and as a monetary store of value.
Give the atomic number.
Gold alloys are identified with ‘carat’ to indicate the amount of gold present.
24-carat gold is simply pure gold, and its lower values such as 18 and 9-carat are often favoured for their higher durability.
Give the atomic number.
Mercury is a heavy, silvery transition metal.
It is the only metal that is liquid at room temperature and is used in thermometers, barometers, and controversially as a component in dental amalgams.
Give the atomic number.
Despite having no known biological role, mercury is spread throughout living systems and every mouthful of food will contain trace amounts of it.
Give the atomic number.
Thallium is a soft, bluish-white (when exposed to air) post-transition metal.
It is highly toxic and was historically used in rat poisons.
Give the atomic number.
Thallium vapour is shown to be teratogenic (affects embryo development), carcinogenic, and can disrupt the nervous system via displacing potassium throughout the body.
Give the atomic number.
Lead is a dense, bluish-gray post-transition metal.
It is used in the production of batteries, ammunition, and as a protective coating for electrical cables.
Give the atomic number.
Lead is obtained through a roasting process of the mineral galena, but in places such as the UK some quantities are obtained via recycling of items like pipes and batteries.
Give the atomic number.
Bismuth is a brittle, silvery-pink post-transition metal.
It is used in the production of cosmetics, pharmaceuticals, and as a component in low-melting alloys.
Give the atomic number.
Bismuth is naturally-occurring as a metal and found in ores like bismuthinite and bismite.
Commercially though, it is often obtained through gold, copper, tin, silver and lead ore refinement.
Give the atomic number.
Polonium is a silvery-grey, radioactive post-transition metal.
It has limited uses due to its high toxicity such as a neutron source when combined with beryllium, in antistatic devices, and heat-source for space equipment.
Give the atomic number.
Russia is the location of all commercially produced polonium.
Give the atomic number.
Astatine is a highly radioactive halogen element.
It is one of the rarest elements on Earth and has no stable isotopes - therefore it is used only for research purposes.
Give the atomic number.
Astatine has no known biological role, and is highly toxic due to its radioactivity.
Give the atomic number.
Radon is a colorless, odorless, radioactive and the heaviest-known noble gas.
Give the atomic number.
Radon is believed to have played a major role in evolution by comprising a lot of the Earth’s background radiation that can give rise to genetic modifications.
Give the atomic number.
Francium highly radioactive alkali metal.
It is extremely rare and has a very short half-life, making it difficult to study.
Give the atomic number.
Francium has no uses due to extremely short half-life of 22 minutes.
Give the atomic number.
Radium is a highly radioactive, soft, shiny, and silvery alkaline-earth metal.
It is used in cancer treatment, as a neutron source, and was historically used in luminous paint.
Give the atomic number.
Radium naturally occurs in all uranium ores and can be extracted as a by-product of uranium refinement.
Give the atomic number.
Actinium is a soft, silver-white radioactive actinide metal.
It is rarely used outside of research.
Give the atomic number.
Actinium glows blue in the darkness due to its radioactivity exciting surrounding air particles.
Give the atomic number.
Thorium is a radioactive actinide metal.
It is used in nuclear reactors, as a catalyst in organic chemistry, and as a component in high-temperature alloys.
Give the atomic number.
Thorium potentially has more available energy than uranium and fossil fuels, and so countries like India and China are working towards developing nuclear power plants using it.
Give the atomic number.
Protactinium is a silvery radioactive actinide metal.
It is used little outside of scientific research.
Give the atomic number.
Protactinium is found in small amounts within uranium ores, and also spent fuel rods of nuclear reactors.
Give the atomic number.
Uranium is a silvery-gray, radioactive actinide metal.
It is used in nuclear reactors, as a component in armor and ammunition, and as a colorant in glass.
Give the atomic number.
Uranium occurs naturally in multiple minerals like uranite (pitcheblende), carnotite, and brannerite.
Give the atomic number.
Neptunium is a radioactive actinide metal.
It is used in scientific research and as a precursor to plutonium-238.
Give the atomic number.
Neptunium is mostly extracted as a byproduct of nuclear reactors but also occurs naturally in trace quantities in uranium ores.
Give the atomic number.
Plutonium is a silvery, radioactive actinide metal.
It is used as a fuel in nuclear reactors, in nuclear weapons, and as a heat source in radioisotope thermoelectric generators for spacecrafts.
Give the atomic number.
Plutonium-239 has a half-life of 24,400 years.
Give the atomic number.
Americium is a shiny, silvery, radioactive actinide metal.
It is used in smoke detectors, as a neutron source, and in scientific research.
Give the atomic number.
Americium is mostly formed through the neutron bombardment of plutonium in a nuclear reactor, but trace amounts also exist in uranium minerals and is formed after the detonation of nuclear weapons.
Give the atomic number.
Curium is a silvery, radioactive actinide metal.
It is used in scientific research, as a source of thermal energy in radioisotope thermoelectric generators, and as a neutron source.
Give the atomic number.
Curium is produced in small amounts through the neutron bombardment of plutonium, but tiny traces may also be found in uranium deposits.
Give the atomic number.
Berkelium is a silvery, radioactive actinide metal.
It is used in scientific research and has no practical applications outside of this due to its rarity.
Give the atomic number.
Berkelium is formed via neutron bombardment of plutonium-239 in nuclear reactors.
Give the atomic number.
Californium is a radioactive actinide metal.
It is used in scientific research and as a strong neutron source for industrial applications.
Give the atomic number.
Californium is used in metal detectors for identifying water and oil layers in oil wells, gold and silver ores, as well as metal fatigue and stress in aeroplane parts.
Give the atomic number.
Einsteinium is a radioactive actinide metal.
It is used in scientific research and has no practical applications outside of this.
Give the atomic number.
Einsteinium, like many other transplutonium elements, is synthesised by bombarding plutonium with neutrons in a nuclear reactor.
Give the atomic number.
Fermium is a radioactive actinide metal.
It is used in scientific research and has no practical applications outside of this.
Give the atomic number.
Fermium is the heaviest element that can be synthesised by neutron bombardment of lighter ones (most commonly plutonium).
And so, it is also the heaviest element that can be produced in macroscopic quantities (micrograms).
Give the atomic number.
Mendelevium is a radioactive actinide metal.
It is used in scientific research and has no practical applications outside of this.
Give the atomic number.
Mendelevium’s longest-lived isotope, Md-260, has a half-life of 28 days.
Give the atomic number.
Nobelium is a radioactive actinide metal.
It is used in scientific research and has no practical applications outside of this.
Give the atomic number.
Nobelium has a half-life of only 58 minutes.
Give the atomic number.
Lawrencium is a radioactive actinide metal.
It is used in scientific research and has no practical applications outside of this.
Give the atomic number.
Lawrencium’s most stable isotope has a half-life of about 4 hours.
Give the atomic number.
Rutherfordium is a synthetic transition metal.
It is highly radioactive and has no known uses outside of scientific research.
Give the atomic number.
Rutherfordium-265 has a half-life of approxiately 2 minutes.
Give the atomic number.
Dubnium is a synthetic transition metal.
It is highly radioactive and has no known uses outside of scientific research.
Give the atomic number.
Dubnium-268 has a half-life of around 1.2 days.
Give the atomic number.
Seaborgium is a synthetic transition metal.
It is highly radioactive and has no known uses outside of scientific research.
Give the atomic number.
Seaborgium-271 as a half-life of around two minutes.
Give the atomic number.
Bohrium is a synthetic transition metal.
It is highly radioactive and has no known uses outside of scientific research.
Give the atomic number.
Bohrium-272 has a half-life of about 10 seconds.
Give the atomic number.
Hassium is a synthetic transition metal.
It is highly radioactive and has no known uses outside of scientific research.
Give the atomic number.
Hassium-270 has a half-life of about 22 seconds.
Give the atomic number.
Meitnerium is a synthetic transition metal.
It is highly radioactive and has no known uses outside of scientific research.
Give the atomic number.
Meitnerium-278, its longest-lived isotope, has a half-life of only 8 seconds.
Give the atomic number.
Darmstadtium is a synthetic transition metal.
It is highly radioactive and has no known uses outside of scientific research.
Give the atomic number.
Darmstadtium has 15 known isotopes, with the heaviest and longest-lived one having a half-life of about 4 minutes.
Give the atomic number.
Roentgenium is a synthetic transition metal.
It is highly radioactive and has no known uses outside of scientific research.
Give the atomic number.
Roentgenium-281 is its longest-lived isotope, with a half-life of 22.8 seconds.
Give the atomic number.
Copernicium is a synthetic element that is thought to be more like a noble gas than a metal due to its lack of reactivity.
It is highly radioactive and has no known uses outside of scientific research.
Give the atomic number.
Copernicium-285 has a half-life of approximately 29 seconds.
Give the atomic number.
Nihonium is highly radioactive and has no known uses outside of scientific research.
Give the atomic number.
Nihonium-284 has a half-life of approximately 0.48 seconds.
Give the atomic number.
Flerovium is highly radioactive and has no known uses outside of scientific research.
Give the atomic number.
Flerovium-289 has a half-life of approximately 2.1 seconds.
Give the atomic number.
Moscovium is highly radioactive and has no known uses outside of scientific research.
Give the atomic number.
Moscovium-288 has a half-life of approximately 0.09 seconds.
Give the atomic number.
Livermorium is highly radioactive and has no known uses outside of scientific research.
Give the atomic number.
Livermorium-293 has a half-life of around 0.06 seconds.
Give the atomic number.
Tennessine is highly radioactive and has no known uses outside of scientific research.
Give the atomic number.
Tennessine-294 has a half-life of about 0.08 seconds.
Give the atomic number.
Oganesson is highly radioactive and has no known uses outside of scientific research.
Give the atomic number.
Oganesson-294 has a half-life of about 0.9 seconds.
