Electron Configuration

1s2 2s1

Lithium means "stone"
Melting Point: 180.85 oC
Boiling Point: 1341.85 oC
Heat of Vaporization: 21279.35 J/g
Heat of Fusion: 662.73 J/g
Specific Heat Capacity: 3.582 J/g . Co or 0.86 cal/g . Co
Density: 0.53 g/cm3