Neon

Symbol | Ne
Latin name | Neon
Atomic number | 10
Period | 2
Element category | Noble gases
Relative atomic mass | 20.1797
Group | VIII.A
Oxidation numbers |
Electron configuration | 1s2 2s2 2p6
Density [g/cm3] | 0.0008999
State | Gas
Melting point [°C] | -248.67
Boiling point [°C] | -246.048
Critical point [°C] | -228.75
Critical pressure [MPa] | 2.76
Atomic radius [pm] | 38
Covalent radius [pm] | 69
Thermal conductivity [W m-1K-1] | 0.0493
Heat capacity [J K-1g-1] | 1.03
Discovery | 1898
1.st ionization energy [eV] | 21.5645
2.nd ionization energy [eV] | 40.962
3.rd ionization energy [eV] | 63.45
Stable isotopes | 3
Unstable isotopes | 5