Electron configuration: 1s2 2s2 2p6

isotope #1 : 20Ne with 19.9924356 (22) as the atomic mass .

Isotope #2 : 21Ne with 20.9938428 (21) as the atomic mass.

Isotope #3 : 22Ne with 21.9913831 (18) as the atomic mass.

High IONIZATION ENERGY

High ELECTRO-

NEGATIVITY

Electron affinity : 0  kJ mol-1