118 Og 294
Oganesson
UNKNOWN, PREDICTED TO BE NOBLE GAS
Phase: Solid
Discovered: Joint Institute for Nuclear Research
Block: P
Summary
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.
Source: WikipediaPhysical Properties
Atomic Mass 294 u
Density 4.95 g/cm³
Melting Point N/A
Boiling Point 350 K