Osmium

Osmium (Os)

grundämne
Atomnummer76
Atommassa190.23
masstal192
Grupp8
Period6
Blockd
Protoner76 p+
Neutroner116 n0
Electrons76 e-
Osmium crystals.jpg Animated Bohrs atommodell of Os (Osmium) Enhanced Bohrs atommodell of Os (Osmium) Bohrs atommodell: Os (Osmium) Orbital Diagram of Os (Osmium)

Egenskaper

atomradie
130 pm
molvolym
kovalent radie
129 pm
Metallic Radius
126 pm
ionic radius
63 pm
Crystal Radius
77 pm
Van der Waalsradie
216 pm
densitet
22,5872 g/cm³
energi
proton affinity
Elektronaffinitet
joniseringsenergi
8,43823 eV/particle
ångbildningsvärme
738 kJ/mol
smältvärme
31,7 kJ/mol
Bildningsentalpi
787 kJ/mol
Electrons
electron shell2, 8, 18, 32, 14, 2
valenselektron6
elektronkonfiguration[Xe] 4f14 5d6 6s2
oxidationstal-4, -2, -1, 0, 1, 2, 3, 4, 5, 6, 7, 8
elektronegativitet
2.2
Electrophilicity
1,5497236992588812 eV/particle
Phases
aggregationstillståndFast
Gas Phase
Kokpunkt
5 281,15 K
Smältpunkt
3 306,15 K
critical pressure
critical temperature
trippelpunkt
Visual
färg
Slate Gray
appearancesilvery, blue cast
Brytningsindex
materialegenskap
Värmeledningsförmåga
termisk expansion
0,0000051 1/K
molar heat capacity
Specifik värmekapacitet
heat capacity ratio
electrical properties
typeConductor
elektrisk konduktivitet
12 MS/m
resistivitet
0,00000008000000000001 m Ω
supraledare
0,66 K
magnetism
typeparamagnetic
magnetisk susceptibilitet (Mass)
0,0000000006 m³/Kg
magnetisk susceptibilitet (Molar)
0,00000000011 m³/mol
magnetisk susceptibilitet (Volume)
0,000014
magnetic ordering
Curiepunkten
Néel temperature
Structure
KristallstrukturEnkelt hexagonalt (HEX)
Gitterkonstant
2,74 Å
Lattice Anglesπ/2, π/2, 2 π/3
mekanisk materialegenskap
hårdhet
7 MPa
Kompressibilitet
skjuvmodul
222 GPa
Young's modulus
Poissons konstant
0,25
ljudhastighet
4 940 m/s
klassificering
KategoriÖvergångsmetaller, Transition metals
CAS GroupVIIIA
IUPAC GroupVIII
Glawe Number60
Mendeleev Number61
Pettifor Number62
Geochemical Classnoble metal
Goldschmidt classificationsiderophile
övrigt
Gas Basicity
Dipole Polarizability
57 ± 3 a₀
C6 Dispersion Coefficient
Allotropes
Träffyta
15
Neutron Mass Absorption
0,0023
kvanttal5D4
rymdgrupp194 (P63/mmc)

Osmiumisotoper

Stabila isotoper7
Instabila isotoper36
Radioactive Isotopes38

161Os

natural abundanceRadioactive ☢️
relative atomic mass
160,989054 ± 0,000429 Da
masstal161
g-factor
Halveringstid
640 ± 60 us
Spinn7/2
nuclear quadrupole moment
upptäcktsdatum2010
Paritet-

161Os Decay Modes
decay modeIntensitet
α (α emission)100%

162Os

natural abundanceRadioactive ☢️
relative atomic mass
161,984434 ± 0,000322 Da
masstal162
g-factor
0
Halveringstid
2,1 ± 0,1 ms
Spinn0
nuclear quadrupole moment
0
upptäcktsdatum1989
Paritet+

162Os Decay Modes
decay modeIntensitet
α (α emission)100%

163Os

natural abundanceRadioactive ☢️
relative atomic mass
162,982462 ± 0,000322 Da
masstal163
g-factor
Halveringstid
5,7 ± 0,5 ms
Spinn7/2
nuclear quadrupole moment
upptäcktsdatum1981
Paritet-

163Os Decay Modes
decay modeIntensitet
α (α emission)100%
β+ (β+ decay; β+ = ϵ + e+)%

164Os

natural abundanceRadioactive ☢️
relative atomic mass
163,978073158 ± 0,000160927 Da
masstal164
g-factor
0
Halveringstid
21 ± 1 ms
Spinn0
nuclear quadrupole moment
0
upptäcktsdatum1981
Paritet+

164Os Decay Modes
decay modeIntensitet
α (α emission)96%
β+ (β+ decay; β+ = ϵ + e+)%

165Os

natural abundanceRadioactive ☢️
relative atomic mass
164,976654 ± 0,000215 Da
masstal165
g-factor
Halveringstid
71 ± 3 ms
Spinn7/2
nuclear quadrupole moment
upptäcktsdatum1978
Paritet-

165Os Decay Modes
decay modeIntensitet
α (α emission)90%
β+ (β+ decay; β+ = ϵ + e+)10%

166Os

natural abundanceRadioactive ☢️
relative atomic mass
165,972698135 ± 0,000019287 Da
masstal166
g-factor
0
Halveringstid
213 ± 5 ms
Spinn0
nuclear quadrupole moment
0
upptäcktsdatum1977
Paritet+

166Os Decay Modes
decay modeIntensitet
α (α emission)83%
β+ (β+ decay; β+ = ϵ + e+)17%

167Os

natural abundanceRadioactive ☢️
relative atomic mass
166,971552304 ± 0,000086841 Da
masstal167
g-factor
Halveringstid
839 ± 5 ms
Spinn7/2
nuclear quadrupole moment
upptäcktsdatum1977
Paritet-

167Os Decay Modes
decay modeIntensitet
α (α emission)51%
β+ (β+ decay; β+ = ϵ + e+)%

168Os

natural abundanceRadioactive ☢️
relative atomic mass
167,96779905 ± 0,000010631 Da
masstal168
g-factor
0
Halveringstid
2,1 ± 0,1 s
Spinn0
nuclear quadrupole moment
0
upptäcktsdatum1977
Paritet+

168Os Decay Modes
decay modeIntensitet
β+ (β+ decay; β+ = ϵ + e+)57%
α (α emission)43%

169Os

natural abundanceRadioactive ☢️
relative atomic mass
168,967017521 ± 0,000027847 Da
masstal169
g-factor
Halveringstid
3,46 ± 0,11 s
Spinn5/2
nuclear quadrupole moment
upptäcktsdatum1972
Paritet-

169Os Decay Modes
decay modeIntensitet
β+ (β+ decay; β+ = ϵ + e+)86.3%
α (α emission)13.7%

170Os

natural abundanceRadioactive ☢️
relative atomic mass
169,963579273 ± 0,000010476 Da
masstal170
g-factor
0
Halveringstid
7,37 ± 0,18 s
Spinn0
nuclear quadrupole moment
0
upptäcktsdatum1972
Paritet+

170Os Decay Modes
decay modeIntensitet
β+ (β+ decay; β+ = ϵ + e+)90.5%
α (α emission)9.5%

171Os

natural abundanceRadioactive ☢️
relative atomic mass
170,963180402 ± 0,000019589 Da
masstal171
g-factor
Halveringstid
8,3 ± 0,2 s
Spinn5/2
nuclear quadrupole moment
upptäcktsdatum1972
Paritet-

171Os Decay Modes
decay modeIntensitet
β+ (β+ decay; β+ = ϵ + e+)%
α (α emission)1.8%

172Os

natural abundanceRadioactive ☢️
relative atomic mass
171,960017309 ± 0,000013704 Da
masstal172
g-factor
0
Halveringstid
19,2 ± 0,9 s
Spinn0
nuclear quadrupole moment
0
upptäcktsdatum1971
Paritet+

172Os Decay Modes
decay modeIntensitet
β+ (β+ decay; β+ = ϵ + e+)98.81%
α (α emission)1.19%

173Os

natural abundanceRadioactive ☢️
relative atomic mass
172,959808387 ± 0,000016059 Da
masstal173
g-factor
Halveringstid
22,4 ± 0,9 s
Spinn5/2
nuclear quadrupole moment
upptäcktsdatum1971
Paritet-

173Os Decay Modes
decay modeIntensitet
β+ (β+ decay; β+ = ϵ + e+)99.6%
α (α emission)0.4%

174Os

natural abundanceRadioactive ☢️
relative atomic mass
173,957063192 ± 0,000011008 Da
masstal174
g-factor
0
Halveringstid
44 ± 4 s
Spinn0
nuclear quadrupole moment
0
upptäcktsdatum1971
Paritet+

174Os Decay Modes
decay modeIntensitet
β+ (β+ decay; β+ = ϵ + e+)100%
α (α emission)0.024%

175Os

natural abundanceRadioactive ☢️
relative atomic mass
174,956945126 ± 0,00001264 Da
masstal175
g-factor
Halveringstid
1,4 ± 0,1 m
Spinn5/2
nuclear quadrupole moment
upptäcktsdatum1972
Paritet-

175Os Decay Modes
decay modeIntensitet
β+ (β+ decay; β+ = ϵ + e+)100%

176Os

natural abundanceRadioactive ☢️
relative atomic mass
175,954770315 ± 0,000011754 Da
masstal176
g-factor
0
Halveringstid
3,6 ± 0,5 m
Spinn0
nuclear quadrupole moment
0
upptäcktsdatum1970
Paritet+

176Os Decay Modes
decay modeIntensitet
β+ (β+ decay; β+ = ϵ + e+)100%

177Os

natural abundanceRadioactive ☢️
relative atomic mass
176,954957902 ± 0,000015687 Da
masstal177
g-factor
Halveringstid
3 ± 0,2 m
Spinn1/2
nuclear quadrupole moment
0
upptäcktsdatum1970
Paritet-

177Os Decay Modes
decay modeIntensitet
β+ (β+ decay; β+ = ϵ + e+)100%

178Os

natural abundanceRadioactive ☢️
relative atomic mass
177,953253334 ± 0,000014634 Da
masstal178
g-factor
0
Halveringstid
5 ± 0,4 m
Spinn0
nuclear quadrupole moment
0
upptäcktsdatum1967
Paritet+

178Os Decay Modes
decay modeIntensitet
β+ (β+ decay; β+ = ϵ + e+)100%

179Os

natural abundanceRadioactive ☢️
relative atomic mass
178,953815985 ± 0,000016645 Da
masstal179
g-factor
Halveringstid
6,5 ± 0,3 m
Spinn1/2
nuclear quadrupole moment
0
upptäcktsdatum1968
Paritet-

179Os Decay Modes
decay modeIntensitet
β+ (β+ decay; β+ = ϵ + e+)100%

180Os

natural abundanceRadioactive ☢️
relative atomic mass
179,952381665 ± 0,000016878 Da
masstal180
g-factor
0
Halveringstid
21,5 ± 0,4 m
Spinn0
nuclear quadrupole moment
0
upptäcktsdatum1967
Paritet+

180Os Decay Modes
decay modeIntensitet
β+ (β+ decay; β+ = ϵ + e+)100%

181Os

natural abundanceRadioactive ☢️
relative atomic mass
180,953247188 ± 0,000027201 Da
masstal181
g-factor
Halveringstid
105 ± 3 m
Spinn1/2
nuclear quadrupole moment
0
upptäcktsdatum1966
Paritet-

181Os Decay Modes
decay modeIntensitet
β+ (β+ decay; β+ = ϵ + e+)100%

182Os

natural abundanceRadioactive ☢️
relative atomic mass
181,952110154 ± 0,000023344 Da
masstal182
g-factor
0
Halveringstid
21,84 ± 0,2 h
Spinn0
nuclear quadrupole moment
0
upptäcktsdatum1950
Paritet+

182Os Decay Modes
decay modeIntensitet
ϵ (electron capture)100%

183Os

natural abundanceRadioactive ☢️
relative atomic mass
182,953125028 ± 0,000053428 Da
masstal183
g-factor
0,17644444444444 ± 0,0031111111111111
Halveringstid
13 ± 0,5 h
Spinn9/2
nuclear quadrupole moment
3,1 ± 0,3
upptäcktsdatum1950
Paritet+

183Os Decay Modes
decay modeIntensitet
β+ (β+ decay; β+ = ϵ + e+)100%

184Os

natural abundanceRadioactive ☢️
0,02 ± 0,02
relative atomic mass
183,952492919 ± 0,00000089 Da
masstal184
g-factor
0
Halveringstid
11,2 ± 2,3 Ty
Spinn0
nuclear quadrupole moment
0
upptäcktsdatum1937
Paritet+

184Os Decay Modes
decay modeIntensitet
α (α emission)%
+ (double β+ decay)%

185Os

natural abundanceRadioactive ☢️
relative atomic mass
184,954045969 ± 0,000000893 Da
masstal185
g-factor
Halveringstid
92,95 ± 0,09 d
Spinn1/2
nuclear quadrupole moment
0
upptäcktsdatum1947
Paritet-

185Os Decay Modes
decay modeIntensitet
ϵ (electron capture)100%

186Os

natural abundanceRadioactive ☢️
1,59 ± 0,64
relative atomic mass
185,953837569 ± 0,000000816 Da
masstal186
g-factor
0
Halveringstid
2 ± 1,1 Py
Spinn0
nuclear quadrupole moment
0
upptäcktsdatum1931
Paritet+

186Os Decay Modes
decay modeIntensitet
α (α emission)100%

187Os

natural abundance
1,96 ± 0,17
relative atomic mass
186,955749569 ± 0,000000791 Da
masstal187
g-factor
Halveringstid
Spinn1/2
nuclear quadrupole moment
0
upptäcktsdatum1931
Paritet-

187Os Decay Modes
decay modeIntensitet
α (α emission)%

188Os

natural abundance
13,24 ± 0,27
relative atomic mass
187,955837292 ± 0,000000788 Da
masstal188
g-factor
0
Halveringstid
Spinn0
nuclear quadrupole moment
0
upptäcktsdatum1931
Paritet+

188Os Decay Modes
decay modeIntensitet
α (α emission)%

189Os

natural abundance
16,15 ± 0,23
relative atomic mass
188,958145949 ± 0,000000715 Da
masstal189
g-factor
Halveringstid
Spinn3/2
nuclear quadrupole moment
0,86 ± 0,03
upptäcktsdatum1931
Paritet-

189Os Decay Modes
decay modeIntensitet
α (α emission)%

190Os

natural abundance
26,26 ± 0,2
relative atomic mass
189,958445442 ± 0,000000697 Da
masstal190
g-factor
0
Halveringstid
Spinn0
nuclear quadrupole moment
0
upptäcktsdatum1931
Paritet+

190Os Decay Modes
decay modeIntensitet
α (α emission)%

191Os

natural abundanceRadioactive ☢️
relative atomic mass
190,960928105 ± 0,000000707 Da
masstal191
g-factor
0,21333333333333 ± 0,0066666666666667
Halveringstid
14,99 ± 0,02 d
Spinn9/2
nuclear quadrupole moment
2,53 ± 0,16
upptäcktsdatum1940
Paritet-

191Os Decay Modes
decay modeIntensitet
β (β decay)100%

192Os

natural abundance
40,78 ± 0,32
relative atomic mass
191,961478765 ± 0,000002484 Da
masstal192
g-factor
0
Halveringstid
Spinn0
nuclear quadrupole moment
0
upptäcktsdatum1931
Paritet+

192Os Decay Modes
decay modeIntensitet
(double β decay)%
α (α emission)%

193Os

natural abundanceRadioactive ☢️
relative atomic mass
192,964149637 ± 0,00000249 Da
masstal193
g-factor
0,48666666666667 ± 0,0013333333333333
Halveringstid
29,83 ± 0,018 h
Spinn3/2
nuclear quadrupole moment
upptäcktsdatum1940
Paritet-

193Os Decay Modes
decay modeIntensitet
β (β decay)100%

194Os

natural abundanceRadioactive ☢️
relative atomic mass
193,965179407 ± 0,000002579 Da
masstal194
g-factor
0
Halveringstid
6 ± 0,2 y
Spinn0
nuclear quadrupole moment
0
upptäcktsdatum1951
Paritet+

194Os Decay Modes
decay modeIntensitet
β (β decay)100%

195Os

natural abundanceRadioactive ☢️
relative atomic mass
194,968318 ± 0,00006 Da
masstal195
g-factor
Halveringstid
6,5 ± 1,1 m
Spinn3/2
nuclear quadrupole moment
upptäcktsdatum2004
Paritet-

195Os Decay Modes
decay modeIntensitet
β (β decay)100%

196Os

natural abundanceRadioactive ☢️
relative atomic mass
195,969643261 ± 0,000043 Da
masstal196
g-factor
0
Halveringstid
34,9 ± 0,2 m
Spinn0
nuclear quadrupole moment
0
upptäcktsdatum1977
Paritet+

196Os Decay Modes
decay modeIntensitet
β (β decay)100%

197Os

natural abundanceRadioactive ☢️
relative atomic mass
196,973076 ± 0,000215 Da
masstal197
g-factor
Halveringstid
93 ± 7 s
Spinn5/2
nuclear quadrupole moment
upptäcktsdatum2003
Paritet-

197Os Decay Modes
decay modeIntensitet
β (β decay)100%

198Os

natural abundanceRadioactive ☢️
relative atomic mass
197,974664 ± 0,000215 Da
masstal198
g-factor
0
Halveringstid
125 ± 28 s
Spinn0
nuclear quadrupole moment
0
upptäcktsdatum2008
Paritet+

198Os Decay Modes
decay modeIntensitet
β (β decay)100%

199Os

natural abundanceRadioactive ☢️
relative atomic mass
198,978239 ± 0,000215 Da
masstal199
g-factor
Halveringstid
6 ± 3 s
Spinn5/2
nuclear quadrupole moment
upptäcktsdatum2008
Paritet-

199Os Decay Modes
decay modeIntensitet
β (β decay)100%

200Os

natural abundanceRadioactive ☢️
relative atomic mass
199,980086 ± 0,000322 Da
masstal200
g-factor
0
Halveringstid
7 ± 4 s
Spinn0
nuclear quadrupole moment
0
upptäcktsdatum2005
Paritet+

200Os Decay Modes
decay modeIntensitet
β (β decay)100%

201Os

natural abundanceRadioactive ☢️
relative atomic mass
200,984069 ± 0,000322 Da
masstal201
g-factor
Halveringstid
Spinn1/2
nuclear quadrupole moment
0
upptäcktsdatum2009
Paritet-

201Os Decay Modes
decay modeIntensitet
β (β decay)%

202Os

natural abundanceRadioactive ☢️
relative atomic mass
201,986548 ± 0,000429 Da
masstal202
g-factor
0
Halveringstid
Spinn0
nuclear quadrupole moment
0
upptäcktsdatum2009
Paritet+

202Os Decay Modes
decay modeIntensitet
β (β decay)%

203Os

natural abundanceRadioactive ☢️
relative atomic mass
202,992195 ± 0,000429 Da
masstal203
g-factor
Halveringstid
Spinn9/2
nuclear quadrupole moment
upptäcktsdatum2012
Paritet+

203Os Decay Modes
decay modeIntensitet
β (β decay)%
β n (β-delayed neutron emission)%

historia

upptäckare eller uppfinnareSmithson Tenant
fyndplatsEngland
upptäcktsdatum1804
etymologiGreek: osmê (odor).
uttalOZ-mi-em (engelska)

Sources

Förekomst
Abundance in Earth's crust
0,0015 mg/kg
Abundance in Oceans
Abundance in Human Body
Abundance in Meteor
0,000066 %
Abundance in Sun
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