Og

Oganesson

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.

Group	unknown, predicted to be noble gas
Atomic number	118
Period	7
Group	18
Phase (STP)	Solid
Atomic mass	294
Density (STP)	4.95 g/L
Melting Point
Molar heat capacity
Boiling point	350 K
Discovered by	Joint Institute for Nuclear Research undefined
Named by
Protons	118
Neutrons	176
Electrons	118
Valencia electrons	8

https://en.wikipedia.org/wiki/Oganesson