The Elements - Periodic Table
Mercury For thermometers. Atomic Number: 80 Atomic Symbol: Hg Atomic Weight: 200.59 Electron Configuration:[Xe]6s^2 4f^14 5d^10 ...
Sources: CRC Handbook of Chemistry and Physics and the American Chemical Society. Last Updated: 12/19/97, CST Information Servic ...
Cobalt For permanent magnets. Atomic Number: 27 Atomic Symbol: Co Atomic Weight: 58.9332 Electron Configuration:[Ar]4s^2 3d^7 Hi ...
turbine generators. The metal is used in electroplating because of its appearance, hardness, and resistance to oxidation. The sa ...
Lead For batteries. Atomic Number: 82 Atomic Symbol: Pb Atomic Weight: 207.2 Electron Configuration:[Xe]6s^2 4f^14 5d^10 6p^2 Hi ...
Uses The metal is very effective as a sound absorber, is used as a radiation shield around X-ray equipment and nuclear reactors, ...
Gallium For computer memory. Atomic Number: 31 Atomic Symbol: Ga Atomic Weight: 69.72 Electron Configuration:[Ar]4s^2 3d^10 4p^1 ...
Uses Gallium wets glass or porcelain and forms a brilliant mirror when it is painted on glass. It is widely used in doping semic ...
Cesium For photoelectric cells. Atomic Number: 55 Atomic Symbol: Cs Atomic Weight: 132.9054 Electron Configuration: [Xe]6s^1 His ...
which are accurate to 5 s in 300 years. Its chief compounds are the chloride and the nitrate. Isotope Cesium has more isotopes t ...
Rubidium For heart muscle research. Atomic Number: 37 Atomic Symbol: Rb Atomic Weight: 85.4678 Electron Configuration: [Kr]5s^1 ...
film in about 30 to 60 days. Rubidium forms four oxides: Rb 2 O, Rb 2 O 2 , Rb 2 O 3 , Rb 2 O 4. Uses Because rubidium can be ea ...
Germanium For wide-angle lenses. Atomic Number: 32 Atomic Symbol: Ge Atomic Weight: 72.59 Electron Configuration:[Ar]4s^2 3d^10 ...
Uses When germanium is doped with arsenic , gallium , or other elements, it is used as a transistor element in thousands of elec ...
Arsenic For LEDs. Atomic Number: 33 Atomic Symbol: As Atomic Weight: 74.9216 Electron Configuration:[Ar]4s^2 3d^10 4p^3 History ...
Selenium For copy machines. Atomic Number: 34 Atomic Symbol: Se Atomic Weight: 78.96 Electron Configuration:[Ar]4s^2 3d^10 4p^4 ...
Isotopes Naturally selenium contains six stable isotopes. Fifteen other isotopes have been characterized. The element is a membe ...
Bromine For photographic film. Atomic Number: 35 Atomic Symbol: Br Atomic Weight: 79.904 Electron Configuration:[Ar]4s^2 3d^10 4 ...
Uses Bromine is used in making fumigants, flameproofing agents, water purification compounds, dyes, medicinals, sanitizers, inor ...
Krypton For fluorescent bulbs. Atomic Number: 36 Atomic Symbol: Kr Atomic Weight: 83.80 Electron Configuration:[Ar]4s^2 3d^10 4p ...
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