- 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
9.00e-4 g/cm³
Density
0.51 Å
Atomic Radius
0.58 Å
Covalent Radius
21.56 eV
First Ionization Energy
-1.16e+2
Electron Affinity
2
Number of Shells
8
Electron Valency
2, 8
Electron Shell Occupations
1.03 J/g
Specific Heat