118
Og
Oganesson
Noble gas period 7 group 18 p-block discovered: 2006
As a chemical element
Properties of the atom — they do not depend on what substance it is part of.
- Atomic number
- 118
- Atomic mass
- 295.216 a.m.u.
- Electron configuration
- [Rn]7s2 7p6 5f14 6d10 (predicted)
- Oxidation states
- +6, +4, +2, +1, 0, -1
As a simple substance
Properties of the substance these atoms form under ordinary conditions.
- State at 25 °C
- Expected to be gas