Beryllium

Alkaline earth metal

Symbol: Be

Atomic Number: 4

Standard State: Solid

Atomic Mass: 9.012183

Electron Configuration: [He]2s2

Electronegativity: 1.57

Atomic Radius: 153

Ionization Energy: 9.323

Melting Point: 1560

Boiling Point: 2744

Density: 1.85

Year Discovered: 1798