- Atomic Radius (Å)
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.
10 Atomic Number
20.18 u Atomic Mass
24.7 K Melting Point
27.07 K Boiling Point
0.9 g/liter Density
0.51 Å Atomic Radius
0.58 Å Covalent Radius
21.56 eV First Ionization Energy
-116 Electron Affinity
2 Number of Shells
8 Electron Valency
2, 8 Electron Shell Occupations
1.03 J/g Specific Heat