Neon (Ne)
Neon
Neon (Ne) is a noble gas in period 2, group 18. Its relative atomic mass is 20.18 and the molar mass of the atom is 20.18 g/mol.
Atomic number 10
Atomic mass 20.18
Molar mass 20.18 g/mol
Category Noble gas Gas
Properties of neon
| Atomic number | 10 |
|---|---|
| Symbol | Ne |
| Latin name | Neon |
| Relative atomic mass | 20.18 |
| Molar mass | 20.18 g/mol |
| Group, period, block | 18, 2, p |
| Category | Noble gas |
| State at 20 °C | Gas |
| Electron configuration | [He] 2s² 2p⁶ |
Electron configuration of neon
Electrons per shell
K2L8
Full notation
1s² 2s² 2p⁶
Noble-gas notation
10 protons · 10 electrons[He] 2s² 2p⁶
Formula and compounds of neon
Simple substanceNeneonMolar mass of Ne: 20.18 g/mol
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Frequently asked questions
The relative atomic mass of neon is 20.18, so the molar mass of the atom is 20.18 g/mol.
Full: 1s² 2s² 2p⁶. Noble-gas notation: [He] 2s² 2p⁶.