Sodium

Symbol | Na
Latin name | Natrium
Atomic number | 11
Period | 3
Element category | Alkali metals
Relative atomic mass | 22.98768
Group | I.A
Electronegativity | 0.9
Oxidation numbers | 1
Electron configuration | 1s2 2s2 2p6 3s1
Density [g/cm3] | 0.9725
State | Solid
Melting point [°C] | 98.81
Boiling point [°C] | 882.9
Critical point [°C] | 2300
Critical pressure [MPa] | 35
Atomic radius [pm] | 190
Covalent radius [pm] | 154
Thermal conductivity [W m-1K-1] | 141
Heat capacity [J K-1g-1] | 1.23
Discovery | 1807
Hardness [Mohs scale] | 0.4
Brinell hardness [MPa] | 0.69
Young's modulus [GPa] | 10
Electrical conductivity [S m-1] | 2.01 · 107
Shear modulus [GPa] | 3.3
1.st ionization energy [eV] | 5.1391
2.nd ionization energy [eV] | 47.286
3.rd ionization energy [eV] | 71.641
Stable isotopes | 1
Unstable isotopes | 6