Template:Infobox oganesson

Oganesson,  ₁₁₈Og

General properties
Pronunciation	Template:Infobox element/pronunciation
Standard atomic weight (Ar, standard)	Template:Infobox element/standard atomic weight
Mass number	Template:Infobox element/symbol-to-most-stable-isotope (most stable isotope) (unconfirmed: 295)
Oganesson in the periodic table
Template:Infobox element/periodic table
Atomic number (Z)	118
Group	Template:Infobox element/group
Period	period 7
Block	p-block
Element category	Template:Infobox element/category format, but probably a noble gas
Electron configuration	[Rn] 5f14 6d10 7s2 7p6 (predicted)
Electrons per shell	2, 8, 18, 32, 32, 18, 8 (predicted)
Physical properties
Phase at STP	solid (predicted)
Boiling point	350±30 K ​(80±30 °C, ​170±50 °F) (extrapolated)
Density when liquid (at m.p.)	4.9–5.1 g/cm3 (predicted)
Critical point	439 K, 6.8 MPa (extrapolated)
Heat of fusion	23.5 kJ/mol (extrapolated)
[[Enthalpy of vaporization|Heat of Template:Engvar]]	19.4 kJ/mol (extrapolated)
Atomic properties
Oxidation states	Template:Infobox element/symbol-to-oxidation-state
[[Ionization energy|Template:Engvar energies]]	1st: 860.1 kJ/mol (predicted) 2nd: 1560 kJ/mol (predicted)
Covalent radius	157 pm (predicted)
Template:Infobox element/spectral lines
Other properties
Crystal structure	​Template:Infobox element/crystal structure Template:Infobox element/crystal structure (extrapolated)
CAS Number	54144-19-3
History
Naming	after Yuri Oganessian
Prediction	Niels Bohr (1922)
Discovery	Joint Institute for Nuclear Research and Lawrence Livermore National Laboratory (2002)
Main isotopes of oganesson
Template:Infobox element/isotopes table