Atomic Number 10    Atomic Mass 20.1797      State gas

Color colorless     Melting Point -248.67°C     Boiling Point -245.9°C

Natural Isotopes  Ne-20 90.48%   Ne-21 0.27%   Ne-22 9.25%

Abbreviated Electron Configuration [He] 2s² 2p⁶

Discovered by Ramsay and Travers in 1898.