Lithium

Symbol | Li
Latin name | Lithium
Atomic number | 3
Period | 2
Element category | Alkali metals
Relative atomic mass | 6.941
Group | I.A
Electronegativity | 1.0
Oxidation numbers | 1
Electron configuration | 1s2 2s1
Density [g/cm3] | 0.534
State | Solid
Melting point [°C] | 180.54
Boiling point [°C] | 1347
Critical point [°C] | 2950
Critical pressure [MPa] | 67
Atomic radius [pm] | 167
Covalent radius [pm] | 134
Thermal conductivity [W m-1K-1] | 84.7
Heat capacity [J K-1g-1] | 3.582
Discovery | 1870
Hardness [Mohs scale] | 0.6
Young's modulus [GPa] | 4.9
Electrical conductivity [S m-1] | 1.17 · 107
Shear modulus [GPa] | 4.2
Stable isotopes | 2
Unstable isotopes | 2