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Chemical Elements
Match this chemical elements with their descriptions and common usage. Also the chemical symbol is provided.
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| A | B |
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| Is an explosive gas and the lightest element. | Hydrogen, H, 1, 90% of atoms in the universe. |
| Is an inert gas and the second lightest element. | Helium, He, 2 |
| Is the lightest element used in batteries and aluminum alloys. | Lithium, Li, 3 |
| Lightweigh metal alloying agent in copper, used in the aerospace industry. | Beryllium, Be, 4 |
| Is a hard black solid used in pyrothechnics and also in antiseptics and washing chemicals. | Boron, B, 5 |
| Is the basis for the world's natural organic fuels such as natural gas, oil, and coal. | Carbon, C, 6 |
| Colorless gas, 78% of the Earth's atmosphere is made up of this element. | Nitrogen, N, 7 |
| Colorless gas necessary for life. | Oxygen, O, 8 |
| Yellowish poison gas used as a cleaning agent and in toothpaste, common additive to drinking water. | Fluorine, F, 9 |
| Is an inert gase. Fourth most abundant element in the universe. Used in sign advertisement. | Neon, N, 10 |
| Reactive soft metal used in streetlights and componds like table salt, soda ash, borax, and baking soda. | Sodium, Na, 11 |
| Lightweight metal used in medicine, essential to animal and plant life. | Magnesium, Mg, 12 |
| Lightweight non-corroding metal used in cans, utensils, airplane and automotive parts. | Aluminum, Al, 13 |
| Hard metalloid used extensively in the semiconductor industry and in solid state electronics. | Silicon, Si, 14 |
| Is a glowing white waxy solid used in fertilizers, also used in explosives and pyrotechnics. | Phosphorus, P, 15 |
| Brittle yellow Solid used in gunpowder and protechnics, rubber manufacturing and insectide | Sulfur, S, 16 |
| Greenish poison gas used in water treatment, also antiseptic, paper, plastics, solvents and textiles. | Chlorine, Cl, 17 |
| Inert gas used in encandescent and flourescent bulfs as a protective layer around the filament to keep oxygen from corroding it. | Argon, Ar, 18 |
| Soft metal and is reactive. Used in compounds, fertilzers, soaps and cleaners. | Potassium, K, 19 |
| Soft metal uysed to prepare thorium and uranium, a reduicing agent used as an alloying agent in aluminum, copperk, lead, and magnesium. | Calcium, Ca, 20 |
| Soft lightweight metal. Key element in stadium lights. Its radioactive isotope is also used as a tracing agent. | Scandium, Sc, 21 |
| Strongest lightweight metal and is heat-resistant. Used in the aerospcace industry as well as engines. | Titanium, Ti, 22 |
| Is a hard metal used in jet engines and aircraft components. | Vanadium, V, 23 |
| Hard shiny metal used in stainless steel as well as in the chrome plating process. | Chromium, Cr, 24 |
| Hard metal makes up .14% of Earth's crust, used in batteries. | Manganese, Mn, 25 |
| Medium hard metal and has magnetic properties, used in the making of steel. | Iron, Fe, 26 |
| Hard metal and is magnetic used in cancer treatment and radiotherapy. | Cobalt, Co, 27 |
| Medium hard metal and is magnetic. Used in stainless steel, piping and tubing production. | Nickel, Ni, 28 |
| Colored metal that conducts heat and electricity. Used in electronics and motors. | Copper, Cu, 29 |
| Is a non-corroding metal used in paints, rubbers, cosmetics, batteries, and textiles. | Zinc, Zn, 30 |
| Soft metal has a low melting point used in medial therometers when combined with arsenic it is used in semiconductors, lasers,and solar panels. | Gallium, Ga, 31 |
| Brittle metalloid used in the semiconductor industry. | Germanium, Ge, 32 |
| Used in transistors, in insecticides, and poisons. | Arsenic, As, 33 |
| Used in the glass industry, solar and photocells, and as photographic toner. | Seenium, Se, 34 |
| Dark red liquid used to purify and disinfect water. | Bromine, Br, 35 |
| Is an inert gas used in flashes in high-speed photography as as a conductive gas in fluorescent lights. | Krypton, Kr, 36 |
| Soft reactive metal used in vacuum tubes and in photocells and specialized glasses. | Rubidium, Rb, 37 |
| Soft metal used in pyrotechnics to produce brillant reds, also used in ferrite magnet producation and zinc refining. | Strontium, Sr, 38 |
| Used to make red phosphorous television tubes, also used to increase strength of aluminium and magnesium alloys. | Yttrium, Y, 39 |
| Non corroding neutron resistant metal used widely in nuclear reactors. | Zirconium, Zr, 40 |
| Non-corroding metal with a high melting point. Stainless stell alloy used in pipelines and jet engines. | Niobium, Nb, 41 |
| High melting point meta. Used in missiles, aircraft and the nuclear power industry. | Molybdenum, Mo, 42 |
| Is a radioactive element that is long-livid. Used as a radioactive tracer. | Technetium, Tc, 43 |
| Hard metal that is non-corrosive. Used in electrial contacts and to color glass. | Ruthenium, Ru, 44 |
| Is a non-corroding hard shiny metal. It can be used in furnaces, electrodes, and sparkplugs. | Rhodium, Rh, 45 |
| Non-Corroding hard metal that readily abosrbs hydrogen. Used in jewelry and dental fillings. | Palladium, Pd, 46 |
| Is a soft shiny metal that is the best electrical conductor. Used in jewelry and tableware. | Silver, Ag, 47 |
| Non-Corroding soft metal that is toxic. Very few uses but can be used to prevent corrosion or to absorb neutrons in nuclear reactors, and in rechargeable nikel-cadmium batteries. | Cadmium, Cd, 48 |
| Is a soft metal used in highly reflective mirrors and low-melting point alloys. | Indium, In, 49 |
| Is a non-corroding soft metal. Used to coat other metals or as an aly in solder and pewter. | Tin, Sn, 50 |
| Brittle metalloid used in cable sheathing and batteries. | Antimony, Sb, 51 |
| Is a brittle metalloid basic element of cast iron and blastinbg caps. | Tellurium. Te, 52 |
| Violte black solid used in photography film and used as an antiseptic. An isotope of this element can by used to treat some thyroid diseases. | Iodine, I, 53 |
| An inert gase used for photgraphi flashes and arc lamps for movie sets. Used in radiaton detection and x-ray counters. | Xenon, Xe, 54 |
| Is a soft metal that is reactive and has the largest stable atoms. Prime element in atomic clocks and as a catalyst for the process of hjydrogenation. | Caesium, Cs, 55 |
| Soft metail the absorbs x-rays used to produce a green glow in pyrotechnics.Compounds are used as a contrast medium in x-rays. | Barium, Ba, 56 |
| Is a soft metal, rare earth element to make arc lights for movie sets. | Lanthanum, La, 57 |
| Soft metal used to produce flint for lighters, also used to refine oil. | Cerium, Cs, 58 |
| Is a soft metal used to make yellow glass goggles for welders. Used to color glass and in enamels. | Praseodymium, Pr, 59 |
| Soft metal used to make powerful magnets. | Neodymium, Nd, 60 |
| Long-lived radioactive element, used in nuclear batteires and a light source for signals. | Promethium, Pm, 61 |
| Soft metal used as a catalyst for dehydration and dehydrogenation of ethanol fuels. Used in cancer treatment. | Samarium, Sm, 62 |
| Is a soft metal and good absorber of neutrals, used in nuclear reactors. Used in the production of red phosphorous in television sets. | Europium, Eu, 63 |
| Soft metal that is the best neutron absorber and is magnetic. Used in MRI machines, used in green phospherous TV tubes and with microwaves. | Gadolinium, Gd, 64 |
| Is a soft metal used as a stabilizer of high temperature fuel cells. | Terbium, Tb, 65 |
| Used as a laser material and in nuclear reactor control rods | Dysprosium, Dy, 66 |
| Is a soft metal used in the production of magnets. Used as a yellow or red red in cubic zirconia manufacturing | Holmium, Ho, 67 |
| Good neutron absorber and is used in nuclear control rods. | Erbium, Er, 68 |
| Is the least naturally occurring element on Earth. | Thulium, Tm, 69 |
| Useable in grain refinement within steel. | Ytterbium, Yb, 70 |
| Densest and hardest rare earth metal. Can be used in t he pretroleum cracking process. | Luttium, Lu, 71 |
| Good entural absorber used in nuclear control rods in nuclear submarines. Also used in plasma welding torches. | Hafnium, Hf, 72 |
| high melting point non-corrding metal. Widely used in the electronics unudstry, also used in surgical instruments. | Tantalum, Ta, 73 |
| Higest meling point of all metals. Used in filaments in incandescent bulbs. Also used to stregnth steel. Is is also called Wolfram. | Tungsten, W, 74 |
| Common catalyst in the production of high-octane gasoline. As an ally it is used in jet engines and as filaments for mass spectrographs. | Rhenium, Re, 75 |
| Non-corrding high melting point hard metal and is the densest element. Used in ball point pen tips, and record needles. | Osmium, Os, 76 |
| The densest element used as a hardening agent for platinum. | Iridium, Ir, 77 |
| Long used for jewelry and for catalytic convertors for automobiles. | Platinum, Pt, 78 |
| Is the most malleable dlement and is a dense non-tarnishing colored metal. | Gold, Au, 79 |
| Liquid toxic metal used in thermometers, barometers, also in streetlights and fluorescent lamps. | Mercury, Hg, 80 |
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Tennessee State University |
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