Noble gas

Neon

Neon (Ne) has atomic number 10. PubChem classifies it as noble gas.

Atomic number

10

Symbol

Ne

Atomic weight (source value)

20.180

Electron configuration

[He]2s2 2p6

Standard state

Gas

Electronegativity (Pauling)

Not provided

Melting point (K)

24.56

Boiling point (K)

27.07

Density (g/cm³)

0.0008999

Oxidation states

0

Understanding this entry

Atomic number is the number of protons in the nucleus. Properties are reference values and may depend on conditions and measurement conventions. An atomic weight is not the mass of every isotope. For elements without a standard atomic weight, a source may report an isotope mass number. Blank source values are shown as unavailable rather than estimated.

Further reading and reference: NIH PubChem source dataset ↗. Values and educational summaries are not a substitute for specialised advice.