Beryllium - The Periodic Table part 7
Elemental symbol: Be Atomic number: 4 Group: Alkali Earth Metals Stable Isotopes: 9 Be (common beryllium) Some Radioactive Isotopes: 5 Be, 6 Be, 7 Be (half-life: 53.24 days), 8 Be, 10 Be (half-life: 1.387×10 6 yrs.), 11 Be, 12 Be, 13 Be, 14 Be, 15 Be, 16 Be Some Allotropes: N/A Melting point: 1560K, 1287°C, or 2349°F Boiling point: 2741K, 2468°C, or 4474°F State at room temperature (20°C/68°F): Solid Density: 1.848 g/cm 3 Common compounds: beryllium oxide (BeO), beryllium chloride (BeCl 2 ), beryllium fluoride (BeF 2 ), beryllium aluminum cyclosilicate/beryl (Be 3 Al 2 Si 6 O 18 ) and many more... Discovered by: Nicholas Louis Vauquelin in 1797 Beryllium is a gray, strong, resistant to corrosion, brittle in pure form, and light element. It’s about three times the density of lithium (Li), but it’s about 1.5 times less dense then aluminum (Al). It’s also terribly toxic. Breath it in, and it can cause pneumonia and other damage to the lungs. You also may deve...