Symbol
Li
Atomic Number
3
Atomic Mass
6.94
Protons
3
Neutrons
4
Electrons
3
Type
Alkali Metal
Isotopes
Lithium-6, Lithium-7
Discovery Year
1817
Discovered By
Johan August Arfvedson
Group
1
Period
2
Boiling Point
2448°F
Melting Point
356°F
Electron Configuration
[He] 2s¹
Density (g/cm³)
0.534
Crystal Structure
Body-centered cubic
Magnetism
Paramagnetic
Abundance in Earth's Crust
0.0020%
Phase at Room Temperature
Solid