Periodic table of the elements
UnunseptiumUnunoctium
118
Uuo
Ununoctium
(294)
2
8
18
32
32
18
8
118
Uuo
Ununoctium
(294)
2
8
18
32
32
18
8
General
NameUnunoctium
SymbolUuo
Number118
Chemical seriesNoble gases
Group / Period18 / 7
Blockp-block
CAS registry number54144-19-3

Ununoctium is a radioactive element

Physical properties
Statesolid
Density g/cm3
Melting point
Boiling point
Critical point

Atomic properties
Atomic Weight(294) g/mol
Crystal structure
Electronegativity
Atomic radius
Atomic radius (calculated)
Electron configuration[Rn] 7s2 5f14 6d10 7p6
Electrons per shell2, 8, 18, 32, 32, 18, 8
Number of protons118
Number of neutrons176

Other languages
SpanishUnunoctio
PortugueseUnunóctio
FrenchUnunoctium
GermanUnunoctium
ItalianUnunoctio
RussianУнуноктий
PolishUnunoctium
Chinese
Arabicأنون أوكتيوم
TurkishUnunoktiyum
DutchUnunoctium


Periodic table of the elements
UnunseptiumUnunoctium