Atomic Element Z = 10 • Noble Gas
Neon (Ne) — Atomic Data, Electron Shells & Reactions
Neon (symbol Ne, atomic number 10) has a standard atomic weight of 20.18 u and ground-state configuration [He] 2s2 2p6.
Atomic Number (Z)
10
IUPAC Symbol
Ne
Standard Atomic Weight
20.18 g/mol
Period / Group / Block
2 / 18 / p-block
Condensed Electron Config
[He] 2s2 2p6
Full Subshell Config
1s2 2s2 2p6
Principal Shell Occupancy
[2, 8]
Pauling Electronegativity
—
First Ionization Energy
2081 kJ/mol
Covalent Radius
58 pm
Melting Point
24.56 K (-248.59 °C)
Boiling Point
27.07 K (-246.08 °C)
Density
0.0008999 g/cm³
Oxidation States
0
Ne (Z=10) — Valence shell highlighted in vermilion