Noble gas

Oganesson

Oganesson (Og) has atomic number 118. PubChem classifies it as noble gas.

Atomic number

118

Symbol

Og

Atomic weight (source value)

295.216

Electron configuration

[Rn]7s2 7p6 5f14 6d10 (predicted)

Standard state

Expected to be a Gas

Electronegativity (Pauling)

Not provided

Melting point (K)

Not provided

Boiling point (K)

Not provided

Density (g/cm³)

Not provided

Oxidation states

+6, +4, +2, +1, 0, -1

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.