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10 - Neon noble gas

Discovered by Morris Travers in 1898

Neon

Neon is a chemical element with symbol Ne and atomic number 10. It is in group 18 (noble gases) of the periodic table. Neon is a colorless, odorless, inert monatomic gas under standard conditions, with about two-thirds the density of air.

Shell Electrons Orbitals
1 2 2 in 1s
2 8 2 in 2s + 6 in 2p
NeonNe Electron 1 Electron 2 Electron 1 Electron 2 Electron 3 Electron 4 Electron 5 Electron 6 Electron 7 Electron 8
20.2  u Atomic Mass
0.51  Å Atomic Radius
27.1  K Boiling Point
0.58  Å Covalent Radius
0.0009  g/cm³ Density
−116 Electron Affinity
21.6  eV First Ionization Energy
24.7  K Melting Point
2 Number of Shells
8 Electron Valency
10 Atomic Number
2, 8 Electron Shell Occupations