118Og295.216
Bohr model of Oganesson

Oganesson

Noble Gas
Expected to be a Gas at STP
Period 7Group 18Block PDiscovered 2006

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

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.

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Atomic Properties

Atomic Number118
Atomic Mass295.216 u
Electron Configuration[Rn]7s2 7p6 5f14 6d10 (predicted)
Oxidation States+6, +4, +2, +1, 0, -1
BlockP

Physical Properties

Standard StateExpected to be a Gas

Classification

CategoryNoble Gas
Group BlockNoble gas
Period7
Group18
BlockP

Discovery

Year Discovered2006
Discovered ByJoint Institute for Nuclear Research
Electron Shells2, 8, 18, 32, 32, 18, 8

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