Oganesson

Unknown properties · atomic number 118

118294OgOganessonSolidUnknown properties

Oganesson is IUPAC's name for the transactinide element with the atomic number 118 and element symbol Og. It is also known as eka-radon or element 118, and on the periodic table of the elements it is a p-block element and the last one of the 7th period. Oganesson is currently the only synthetic member of group 18.

Properties of Oganesson

Element category	Unknown properties
Atomic number	118
Atomic mass	294 u
Phase at STP	Solid
Group	18
Period	7
Block	p
Electron configuration	*[Rn] 5f14 6d10 7s2 7p6
Electrons per shell	2, 8, 18, 32, 32, 18, 8
Boiling point	350 K (77 °C)
Density	4.95 g/cm3
Discovered by	Joint Institute for Nuclear Research

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About the unknown properties group

Superheavy synthetic elements made atom-by-atom, existing for fractions of a second; their true chemistry is still unmeasured.

Data: Periodic-Table-JSON (CC BY-SA 3.0) · stored statically on our server. https://en.wikipedia.org/wiki/Oganesson

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8 elements: Superheavy synthetic elements made atom-by-atom, existing for fractions of a second; their true chemistry is still unmeasured.