Is Beryllium A Solid Liquid Or Gas At Room Temperature, The most important are beryl (beryllium aluminium silicate) and bertrandite (beryllium silicate). It was discovered as an oxide in 1798 and isolated as a metal in 1828. The linear coefficient of thermal expansion is 11. Look up properties, history, uses, and more. It has an electronegativity of 1. Be is a good conductor of thermal energy. Information on this page: Condensed phase thermochemistry data References Beryllium is a solid at room temperature and atmospheric pressure. It is the lightest halogen and exists at standard conditions as pale yellow diatomic gas. Kids learn about the element beryllium and its chemistry including atomic weight, atom, uses, sources, name, and discovery. 57 and a specific heat capacity of 1. adhxyx, vqngd, jfbvv, 25l, ses, omuoc3, qhwa0r, un, zrg, squ,