Atomic Element Z = 118 • Noble Gas
Oganesson (Og) — Atomic Data, Electron Shells & Reactions
Oganesson (symbol Og, atomic number 118) has a standard atomic weight of 294 u and ground-state configuration [Rn] 5f14 6d10 7s2 7p6.
Atomic Number (Z)
118
IUPAC Symbol
Og
Standard Atomic Weight
294 g/mol
Period / Group / Block
7 / 18 / p-block
Condensed Electron Config
[Rn] 5f14 6d10 7s2 7p6
Full Subshell Config
1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 4f14 5s2 5p6 5d10 5f14 6s2 6p6 6d10 7s2 7p6
Principal Shell Occupancy
[2, 8, 18, 32, 32, 18, 8]
Pauling Electronegativity
—
First Ionization Energy
860 kJ/mol
Covalent Radius
157 pm
Melting Point
325 K (51.85 °C)
Boiling Point
450 K (176.85 °C)
Density
5 g/cm³
Oxidation States
0, +2, +4
Og (Z=118) — Valence shell highlighted in vermilion