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.
118
Atomic Number
294
Atomic Mass (u)
4.95
Density (solid: g/cm³, gas: g/liter)
5.4
Electron Affinity
7
Number of Shells
8
Electron Valency
2, 8, 18, 32, 32, 18, 8
Electron Shell Occupations