Oganesson

Noble gas · 295.216 u · group 18, period 7

Oganesson · Og

Atomic number118

SymbolOg

CategoryNoble gas

Standard stateGas (predicted)

Group · Period · Block18 · 7 · p

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

Atomic mass295.216 u

Atomic radius—

Protons / Neutrons / Electrons118 / 177 / 118

Shells (e⁻ per shell)2, 8, 18, 32, 32, 18, 8

Electronegativity (Pauling)—

Ionization energy—

Electron affinity—

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

Melting point—

Boiling point—

Density—

Year discovered2006

CPK color

#d0bfff

State at room temp (25 °C)

unknown

Position