Periodic table of the elements
RheniumOsmiumIridium
76
Os
Osmium
190.23
2
8
18
32
14
2
76
Os
Osmium
190.23
2
8
18
32
14
2
General
NameOsmium
SymbolOs
Number76
Chemical seriesTransition elements
Group / Period8 / 6
Blockd-block
CAS registry number7440-04-2

Physical properties
Statesolid
Density22.61 g/cm3
Melting point3306 K (3033 °C, 5491 °F)
Boiling point5285 K (5012 °C, 9054 °F)
Critical point

Atomic properties
Atomic Weight190.23 g/mol
Crystal structurehexagonal
Electronegativity2.20
Atomic radius130 pm
Atomic radius (calculated)185 pm
Electron configuration[Xe] 4f14 5d6 6s2
Electrons per shell2, 8, 18, 32, 14, 2
Number of protons76
Number of neutrons114

Other languages
SpanishOsmio
PortugueseÓsmio
FrenchOsmium
GermanOsmium
ItalianOsmio
RussianОсмий
PolishOsm
Chinese
Arabicأوزميوم
TurkishOsmiyum
DutchOsmium


Periodic table of the elements
RheniumOsmiumIridium