Osmiyûm

Osmiyûm (Os)

chemical element with symbol Os and atomic number 76
Atomic Number76
Atomic Weight190.23
Hejmara baristeyî192
Group8
Period6
Blockd
Proton76 p+
Notron116 n0
Kareva76 e-
Animated Bohr model of Os (Osmiyûm)

Physical Property

Atomic Radius
130 pm
molar volume
Covalent Radius
129 pm
Metallic Radius
126 pm
ionic radius
63 pm
Crystal Radius
77 pm
Van der Waals radius
216 pm
density
22,5872 g/cm³
Atomic Radii Of The Elements: Osmiyûm0102030405060708090100110120130140150160170180190200210220pmAtomic RadiusCovalent RadiusMetallic RadiusVan der Waals radius

Chemical Property

wize
proton affinity
electron affinity
ionization energy
8,43823 eV/particle
ionization energy of Os (Osmiyûm)
enthalpy of vaporization
738 kJ/mol
enthalpy of fusion
31,7 kJ/mol
standard enthalpy of formation
787 kJ/mol
Kareva
electron shell2, 8, 18, 32, 14, 2
Bohr model: Os (Osmiyûm)
valence electron2
Lewis structure: Os (Osmiyûm)
electron configuration[Xe] 4f14 5d6 6s2
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 4f14 5d6 6s2
Enhanced Bohr model of Os (Osmiyûm)
Orbital Diagram of Os (Osmiyûm)
oxidation number-4, -2, -1, 0, 1, 2, 3, 4, 5, 6, 7, 8
electronegativity
2.2
Electrophilicity Index
1,5497236992588812 eV/particle
fundamental state of matter
phase of matterSolid
gaseous state of matter
Boiling Point
5.281,15 K
Melting Point
3.306,15 K
critical pressure
critical temperature
triple point
appearance
color
Slate Gray
appearancesilvery, blue cast
refractive index
thermodynamic material property
Thermal Conductivity
thermal expansion
0,0000051 1/K
molar heat capacity
Specific Heat Capacity
heat capacity ratio
electrical properties
typeConductor
electrical conductivity
12 MS/m
electrical resistivity
0,00000008000000000001 m Ω
superconductivity
0,66 K
magnetism
typeparamagnetic
magnetic susceptibility (Mass)
0,0000000006 m³/Kg
magnetic susceptibility (Molar)
0,00000000011 m³/mol
magnetic susceptibility (Volume)
0,000014
magnetic ordering
Germahiya Curie
Néel temperature
pêkhate
Crystal StructureSimple Hexagonal (HEX)
lattice constant
2,74 Å
Lattice Anglesπ/2, π/2, 2 π/3
mechanical property
hardness
7 MPa
bulk modulus
shear modulus
222 GPa
Young's modulus
Poisson's ratio
0,25
Leza dengê
4.940 m/s
classification
CategoryTransition metals, Transition metals
CAS GroupVIIIA
IUPAC GroupVIII
Glawe Number60
Mendeleev Number61
Pettifor Number62
Geochemical Classnoble metal
Goldschmidt classificationsiderophile

other

Gas Basicity
polarizability
57 ± 3 a₀
C6 Dispersion Coefficient
allotrope
Neutron cross section
15
Neutron Mass Absorption
0,0023
quantum number5D4
space group194 (P63/mmc)

Isotopes of Osmium

Stable Isotopes0
Unstable Isotopes43
Natural Isotopes7
Isotopic Composition19240.78%19240.78%19026.26%19026.26%18916.15%18916.15%18813.24%18813.24%1861.59%1861.59%1871.96%1871.96%1840.02%1840.02%

161Os

Hejmara baristeyî161
neutron number85
Giraniya atomê
160,989054 ± 0,000429 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
640 ± 60 us
spin7/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê2010
parity-

decay modeintensity
α (α emission)100%

162Os

Hejmara baristeyî162
neutron number86
Giraniya atomê
161,984434 ± 0,000322 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
2,1 ± 0,1 ms
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1989
parity+

decay modeintensity
α (α emission)100%

163Os

Hejmara baristeyî163
neutron number87
Giraniya atomê
162,982462 ± 0,000322 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
5,7 ± 0,5 ms
spin7/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê1981
parity-

decay modeintensity
α (α emission)100%
β+ (β+ decay; β+ = ϵ + e+)

164Os

Hejmara baristeyî164
neutron number88
Giraniya atomê
163,978073158 ± 0,000160927 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
21 ± 1 ms
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1981
parity+

decay modeintensity
α (α emission)96%
β+ (β+ decay; β+ = ϵ + e+)

165Os

Hejmara baristeyî165
neutron number89
Giraniya atomê
164,976654 ± 0,000215 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
71 ± 3 ms
spin7/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê1978
parity-

decay modeintensity
α (α emission)90%
β+ (β+ decay; β+ = ϵ + e+)10%

166Os

Hejmara baristeyî166
neutron number90
Giraniya atomê
165,972698135 ± 0,000019287 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
213 ± 5 ms
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1977
parity+

decay modeintensity
α (α emission)83%
β+ (β+ decay; β+ = ϵ + e+)17%

167Os

Hejmara baristeyî167
neutron number91
Giraniya atomê
166,971552304 ± 0,000086841 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
839 ± 5 ms
spin7/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê1977
parity-

decay modeintensity
α (α emission)51%
β+ (β+ decay; β+ = ϵ + e+)

168Os

Hejmara baristeyî168
neutron number92
Giraniya atomê
167,96779905 ± 0,000010631 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
2,1 ± 0,1 s
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1977
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)57%
α (α emission)43%

169Os

Hejmara baristeyî169
neutron number93
Giraniya atomê
168,967017521 ± 0,000027847 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
3,46 ± 0,11 s
spin5/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê1972
parity-

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)86.3%
α (α emission)13.7%

170Os

Hejmara baristeyî170
neutron number94
Giraniya atomê
169,963579273 ± 0,000010476 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
7,37 ± 0,18 s
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1972
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)90.5%
α (α emission)9.5%

171Os

Hejmara baristeyî171
neutron number95
Giraniya atomê
170,963180402 ± 0,000019589 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
8,3 ± 0,2 s
spin5/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê1972
parity-

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)
α (α emission)1.8%

172Os

Hejmara baristeyî172
neutron number96
Giraniya atomê
171,960017309 ± 0,000013704 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
19,2 ± 0,9 s
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1971
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)98.81%
α (α emission)1.19%

173Os

Hejmara baristeyî173
neutron number97
Giraniya atomê
172,959808387 ± 0,000016059 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
22,4 ± 0,9 s
spin5/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê1971
parity-

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)99.6%
α (α emission)0.4%

174Os

Hejmara baristeyî174
neutron number98
Giraniya atomê
173,957063192 ± 0,000011008 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
44 ± 4 s
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1971
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%
α (α emission)0.024%

175Os

Hejmara baristeyî175
neutron number99
Giraniya atomê
174,956945126 ± 0,00001264 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
1,4 ± 0,1 m
spin5/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê1972
parity-

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%

176Os

Hejmara baristeyî176
neutron number100
Giraniya atomê
175,954770315 ± 0,000011754 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
3,6 ± 0,5 m
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1970
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%

177Os

Hejmara baristeyî177
neutron number101
Giraniya atomê
176,954957902 ± 0,000015687 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
3 ± 0,2 m
spin1/2
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1970
parity-

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%

178Os

Hejmara baristeyî178
neutron number102
Giraniya atomê
177,953253334 ± 0,000014634 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
5 ± 0,4 m
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1967
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%

179Os

Hejmara baristeyî179
neutron number103
Giraniya atomê
178,953815985 ± 0,000016645 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
6,5 ± 0,3 m
spin1/2
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1968
parity-

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%

180Os

Hejmara baristeyî180
neutron number104
Giraniya atomê
179,952381665 ± 0,000016878 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
21,5 ± 0,4 m
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1967
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%

181Os

Hejmara baristeyî181
neutron number105
Giraniya atomê
180,953247188 ± 0,000027201 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
105 ± 3 m
spin1/2
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1966
parity-

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%

182Os

Hejmara baristeyî182
neutron number106
Giraniya atomê
181,952110154 ± 0,000023344 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
21,84 ± 0,2 h
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1950
parity+

decay modeintensity
ϵ (electron capture)100%

183Os

Hejmara baristeyî183
neutron number107
Giraniya atomê
182,953125028 ± 0,000053428 Da
g-factor
0,17644444444444 ± 0,0031111111111111
natural abundance
radioactivity☢️ radioactive element
half-life
13 ± 0,5 h
spin9/2
nuclear quadrupole moment
3,1 ± 0,3
dema îcadkirinê yan keşfê1950
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%

184Os

Hejmara baristeyî184
neutron number108
Giraniya atomê
183,952492919 ± 0,00000089 Da
g-factor
0
natural abundance
0,02 ± 0,02
radioactivity☢️ radioactive element
half-life
11,2 ± 2,3 Ty
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1937
parity+

decay modeintensity
α (α emission)
+ (double β+ decay)

185Os

Hejmara baristeyî185
neutron number109
Giraniya atomê
184,954045969 ± 0,000000893 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
92,95 ± 0,09 d
spin1/2
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1947
parity-

decay modeintensity
ϵ (electron capture)100%

186Os

Hejmara baristeyî186
neutron number110
Giraniya atomê
185,953837569 ± 0,000000816 Da
g-factor
0
natural abundance
1,59 ± 0,64
radioactivity☢️ radioactive element
half-life
2 ± 1,1 Py
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1931
parity+

decay modeintensity
α (α emission)100%

187Os

Hejmara baristeyî187
neutron number111
Giraniya atomê
186,955749569 ± 0,000000791 Da
g-factor
natural abundance
1,96 ± 0,17
radioactivity☢️ radioactive element
half-life
spin1/2
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1931
parity-

decay modeintensity
α (α emission)

188Os

Hejmara baristeyî188
neutron number112
Giraniya atomê
187,955837292 ± 0,000000788 Da
g-factor
0
natural abundance
13,24 ± 0,27
radioactivity☢️ radioactive element
half-life
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1931
parity+

decay modeintensity
α (α emission)

189Os

Hejmara baristeyî189
neutron number113
Giraniya atomê
188,958145949 ± 0,000000715 Da
g-factor
natural abundance
16,15 ± 0,23
radioactivity☢️ radioactive element
half-life
spin3/2
nuclear quadrupole moment
0,86 ± 0,03
dema îcadkirinê yan keşfê1931
parity-

decay modeintensity
α (α emission)

190Os

Hejmara baristeyî190
neutron number114
Giraniya atomê
189,958445442 ± 0,000000697 Da
g-factor
0
natural abundance
26,26 ± 0,2
radioactivity☢️ radioactive element
half-life
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1931
parity+

decay modeintensity
α (α emission)

191Os

Hejmara baristeyî191
neutron number115
Giraniya atomê
190,960928105 ± 0,000000707 Da
g-factor
0,21333333333333 ± 0,0066666666666667
natural abundance
radioactivity☢️ radioactive element
half-life
14,99 ± 0,02 d
spin9/2
nuclear quadrupole moment
2,53 ± 0,16
dema îcadkirinê yan keşfê1940
parity-

decay modeintensity
β (β decay)100%

192Os

Hejmara baristeyî192
neutron number116
Giraniya atomê
191,961478765 ± 0,000002484 Da
g-factor
0
natural abundance
40,78 ± 0,32
radioactivity☢️ radioactive element
half-life
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1931
parity+

decay modeintensity
(double β decay)
α (α emission)

193Os

Hejmara baristeyî193
neutron number117
Giraniya atomê
192,964149637 ± 0,00000249 Da
g-factor
0,48666666666667 ± 0,0013333333333333
natural abundance
radioactivity☢️ radioactive element
half-life
29,83 ± 0,018 h
spin3/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê1940
parity-

decay modeintensity
β (β decay)100%

194Os

Hejmara baristeyî194
neutron number118
Giraniya atomê
193,965179407 ± 0,000002579 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
6 ± 0,2 y
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1951
parity+

decay modeintensity
β (β decay)100%

195Os

Hejmara baristeyî195
neutron number119
Giraniya atomê
194,968318 ± 0,00006 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
6,5 ± 1,1 m
spin3/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê2004
parity-

decay modeintensity
β (β decay)100%

196Os

Hejmara baristeyî196
neutron number120
Giraniya atomê
195,969643261 ± 0,000043 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
34,9 ± 0,2 m
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1977
parity+

decay modeintensity
β (β decay)100%

197Os

Hejmara baristeyî197
neutron number121
Giraniya atomê
196,973076 ± 0,000215 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
93 ± 7 s
spin5/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê2003
parity-

decay modeintensity
β (β decay)100%

198Os

Hejmara baristeyî198
neutron number122
Giraniya atomê
197,974664 ± 0,000215 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
125 ± 28 s
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê2008
parity+

decay modeintensity
β (β decay)100%

199Os

Hejmara baristeyî199
neutron number123
Giraniya atomê
198,978239 ± 0,000215 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
6 ± 3 s
spin5/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê2008
parity-

decay modeintensity
β (β decay)100%

200Os

Hejmara baristeyî200
neutron number124
Giraniya atomê
199,980086 ± 0,000322 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
7 ± 4 s
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê2005
parity+

decay modeintensity
β (β decay)100%

201Os

Hejmara baristeyî201
neutron number125
Giraniya atomê
200,984069 ± 0,000322 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
spin1/2
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê2009
parity-

decay modeintensity
β (β decay)

202Os

Hejmara baristeyî202
neutron number126
Giraniya atomê
201,986548 ± 0,000429 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê2009
parity+

decay modeintensity
β (β decay)

203Os

Hejmara baristeyî203
neutron number127
Giraniya atomê
202,992195 ± 0,000429 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
spin9/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê2012
parity+

decay modeintensity
β (β decay)
β n (β-delayed neutron emission)
Osmium crystals

dîrok

kaşîf an îcadkerSmithson Tenant
location of discoveryEngland
dema îcadkirinê yan keşfê1804
BêjenasîGreek: osmê (odor).
pronunciationOZ-mi-em (îngilîzî)

source

Abundance
Abundance in Earth's crust
0,0015 mg/kg
natural abundance (Okyanûs)
natural abundance (human body)
natural abundance (meteoroid)
0,000066 %
natural abundance (Roj)
0,0000002 %
Abundance in Universe
0,0000003 %

Nuclear Screening Constants

1s1.4701
2p4.4502
2s19.8502
3d13.5253
3p21.7483
3s22.5727
4d37.142
4f38.8472
4p34.856
4s33.9048
5d58.003
5p53.09
5s50.905
6s65.677