Berryllium is the 4th element of the periodic table. Its atomic weight Is 9.012 u and its symbol is Be. It is a relatively rare metal in the universe and it is a Alkali earth metal, which makes it relatively reactive but not nearly as reactive as Lithium or Hydrogen Beryllium is used in air and spacecraft components, and the study of nuclear energy. Also, it is very brittle.
Atomic name: Beryllium Melting point: 1287 C, 2349 F
Atomic number: 4 Boiling point: 2970 C, 5378 F
Atomic weight: 9.012 u
Elemental Catergory: Alkali earth metal