Element Oganesson (Og)

Atomic number 118 · noble gas · Atomic mass 294 u

Atomic Mass
294.0000 u
Element Properties
Atomic Number 118
Atomic Mass 294.0000 u
Category noble gas / 稀有气体
Group 18
Period 7
Block P
Electron Configuration [Rn] 5f¹⁴ 6d¹⁰ 7s² 7p⁶
Electronegativity (Pauling)
Phase at STP Gas
Density 4.95 g/cm³
Year Discovered 2002

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