Osmyum (Os)

chemical element with symbol Os and atomic number 76

Atomic Number	76
Atomic Weight	190.23
mass number	192

Group	8
Period	6
Block	d

proton	76 p⁺
neutron	116 n⁰
electron	76 e^-

Physical Property

Atomic Radius	130 pm 244 pm
molar volume	8.43 cm³/mol
covalent radius	129 pm 116 pm 109 pm 144 pm
Metallic Radius	126 pm 135 pm
ionic radius	63 pm 57.5 pm 49 pm 54.5 pm 52.5 pm 39 pm
Crystal Radius	77 pm 71.5 pm 63 pm 68.5 pm 66.5 pm 53 pm
Van der Waals radius	200 pm 216 pm 235 pm 312 pm
dosedh	22.5872 g/cm³ 20,000 kg/m³

Chemical Property

{ERROR}

nerth

proton affinity
electron affinity	1.1 eV/particle
ionization energy	8.43823 eV/particle 17 eV/particle 25 eV/particle 41 eV/particle 55 eV/particle 70.1 eV/particle 85.1 eV/particle 102.024 eV/particle 168.7 eV/particle 190 eV/particle 213 eV/particle 235 eV/particle 269 eV/particle 300 eV/particle 320 eV/particle 367 eV/particle 410 eV/particle 436 eV/particle 470 eV/particle 520 eV/particle 570 eV/particle 620 eV/particle 670 eV/particle 720 eV/particle 770 eV/particle 820 eV/particle 870 eV/particle 920 eV/particle 970 eV/particle 1,015 eV/particle 1,262 eV/particle 1,311 eV/particle 1,364 eV/particle 1,420 eV/particle 1,474 eV/particle 1,528 eV/particle 1,606 eV/particle 1,660 eV/particle 1,720 eV/particle 1,776 eV/particle 1,996 eV/particle 2,052 eV/particle 2,112 eV/particle 2,168 eV/particle 2,336 eV/particle 2,400 eV/particle 2,552 eV/particle 2,615.5 eV/particle 4,374 eV/particle 4,501 eV/particle 4,635 eV/particle 4,779 eV/particle 4,917 eV/particle 5,052 eV/particle 5,280 eV/particle 5,421 eV/particle 5,575 eV/particle 5,717 eV/particle 6,115 eV/particle 6,240 eV/particle 6,376 eV/particle 6,503 eV/particle 7,039 eV/particle 7,185 eV/particle 7,468 eV/particle 7,610 eV/particle 16,560 eV/particle 16,900 eV/particle 17,270 eV/particle 17,620 eV/particle 19,600 eV/particle 20,030 eV/particle 20,570 eV/particle 20,920.6 eV/particle 83,976.2 eV/particle 85,614.4 eV/particle

enthalpy of vaporization	738 kJ/mol
enthalpy of fusion	31.7 kJ/mol
standard enthalpy of formation	787 kJ/mol
electron

electron shell	2, 8, 18, 32, 14, 2

valence electron	2 ⓘ

aray an elektrons	[Xe] 4f¹⁴ 5d⁶ 6s²ⓘ 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d¹⁰ 5p⁶ 4f¹⁴ 5d⁶ 6s²

oxidation number	-4, -2, -1, 0, 1, 2, 3, 4, 5, 6, 7, 8
electronegativity	9.78 eV/particle 0.2479845 2.2
Electrophilicity Index	1.5497236992588812 eV/particle
fundamental state of matter

phase of matter
gaseous state of matter
Boiling Point	5,281.15 K
Melting Point	3,306.15 K
critical pressure
critical temperature
triple point
appearance
liw	Black #ff1493 #266696 #266696
appearance	silvery, blue cast
refractive index
thermodynamic material property
Thermal Conductivity
thermal expansion	0.0000051 1/K
molar heat capacity	24.7 J/(mol K)
Specific Heat Capacity	0.13 J/(g⋅K)
heat capacity ratio
electrical properties
type	Conductor
electrical conductivity	12 MS/m
electrical resistivity	0.00000008000000000001 Ω*m
superconductivity	0.66 K
magnetism
type	paramagnetic
magnetic susceptibility (Mass)	0.0000000006 m³/Kg
magnetic susceptibility (Molar)	0.00000000011 m³/mol
magnetic susceptibility (Volume)	0.000014
magnetic ordering
Curie temperature
Néel temperature
kesweyth
Crystal Structure	{ERROR}
lattice constant	2.74 Å
Lattice Angles	π/2, π/2, 2 π/3
mechanical property
hardness	3,920 MPa 7 MPa
bulk modulus
shear modulus	222 GPa
Young's modulus
Poisson's ratio	0.25
speed of sound	4,940 m/s
classification
Category	Actinides, Transition metals
CAS Group	VIIIA
IUPAC Group	VIII
Glawe Number	60
Mendeleev Number	61
Pettifor Number	62
Geochemical Class	noble metal
Goldschmidt classification	siderophile

other

Gas Basicity
polarizability	57 ± 3 a₀
C6 Dispersion Coefficient	584 a₀
allotrope
Neutron cross section	15
Neutron Mass Absorption	0.0023
quantum number	5D4
space group	194 (P63/mmc)

Isotopes of Osmium

Stable Isotopes	0
Unstable Isotopes	43
Natural Isotopes	7

¹⁶¹Os

mass number	161
neutron number	85
relative atomic mass	160.989054 ± 0.000429 Da
g-factor
natural abundance
radioactivity	☢️ elven radyoweythresek
half-life	640 ± 60 us
spin	7/2
nuclear quadrupole moment
dydhyas diskudhans	2010
parity	-

decay mode	intensity
α (α emission)	100%

¹⁶²Os

mass number	162
neutron number	86
relative atomic mass	161.984434 ± 0.000322 Da
g-factor	0
natural abundance
radioactivity	☢️ elven radyoweythresek
half-life	2.1 ± 0.1 ms
spin	0
nuclear quadrupole moment	0
dydhyas diskudhans	1989
parity	+

decay mode	intensity
α (α emission)	100%

¹⁶³Os

mass number	163
neutron number	87
relative atomic mass	162.982462 ± 0.000322 Da
g-factor
natural abundance
radioactivity	☢️ elven radyoweythresek
half-life	5.7 ± 0.5 ms
spin	7/2
nuclear quadrupole moment
dydhyas diskudhans	1981
parity	-

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

¹⁶⁴Os

mass number	164
neutron number	88
relative atomic mass	163.978073158 ± 0.000160927 Da
g-factor	0
natural abundance
radioactivity	☢️ elven radyoweythresek
half-life	21 ± 1 ms
spin	0
nuclear quadrupole moment	0
dydhyas diskudhans	1981
parity	+

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

¹⁶⁵Os

mass number	165
neutron number	89
relative atomic mass	164.976654 ± 0.000215 Da
g-factor
natural abundance
radioactivity	☢️ elven radyoweythresek
half-life	71 ± 3 ms
spin	7/2
nuclear quadrupole moment
dydhyas diskudhans	1978
parity	-

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

¹⁶⁶Os

mass number	166
neutron number	90
relative atomic mass	165.972698135 ± 0.000019287 Da
g-factor	0
natural abundance
radioactivity	☢️ elven radyoweythresek
half-life	213 ± 5 ms
spin	0
nuclear quadrupole moment	0
dydhyas diskudhans	1977
parity	+

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

¹⁶⁷Os

mass number	167
neutron number	91
relative atomic mass	166.971552304 ± 0.000086841 Da
g-factor
natural abundance
radioactivity	☢️ elven radyoweythresek
half-life	839 ± 5 ms
spin	7/2
nuclear quadrupole moment
dydhyas diskudhans	1977
parity	-

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

¹⁶⁸Os

mass number	168
neutron number	92
relative atomic mass	167.96779905 ± 0.000010631 Da
g-factor	0
natural abundance
radioactivity	☢️ elven radyoweythresek
half-life	2.1 ± 0.1 s
spin	0
nuclear quadrupole moment	0
dydhyas diskudhans	1977
parity	+

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

¹⁶⁹Os

mass number	169
neutron number	93
relative atomic mass	168.967017521 ± 0.000027847 Da
g-factor
natural abundance
radioactivity	☢️ elven radyoweythresek
half-life	3.46 ± 0.11 s
spin	5/2
nuclear quadrupole moment
dydhyas diskudhans	1972
parity	-

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

¹⁷⁰Os

mass number	170
neutron number	94
relative atomic mass	169.963579273 ± 0.000010476 Da
g-factor	0
natural abundance
radioactivity	☢️ elven radyoweythresek
half-life	7.37 ± 0.18 s
spin	0
nuclear quadrupole moment	0
dydhyas diskudhans	1972
parity	+

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

¹⁷¹Os

mass number	171
neutron number	95
relative atomic mass	170.963180402 ± 0.000019589 Da
g-factor
natural abundance
radioactivity	☢️ elven radyoweythresek
half-life	8.3 ± 0.2 s
spin	5/2
nuclear quadrupole moment
dydhyas diskudhans	1972
parity	-

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

¹⁷²Os

mass number	172
neutron number	96
relative atomic mass	171.960017309 ± 0.000013704 Da
g-factor	0
natural abundance
radioactivity	☢️ elven radyoweythresek
half-life	19.2 ± 0.9 s
spin	0
nuclear quadrupole moment	0
dydhyas diskudhans	1971
parity	+

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

¹⁷³Os

mass number	173
neutron number	97
relative atomic mass	172.959808387 ± 0.000016059 Da
g-factor
natural abundance
radioactivity	☢️ elven radyoweythresek
half-life	22.4 ± 0.9 s
spin	5/2
nuclear quadrupole moment
dydhyas diskudhans	1971
parity	-

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

¹⁷⁴Os

mass number	174
neutron number	98
relative atomic mass	173.957063192 ± 0.000011008 Da
g-factor	0
natural abundance
radioactivity	☢️ elven radyoweythresek
half-life	44 ± 4 s
spin	0
nuclear quadrupole moment	0
dydhyas diskudhans	1971
parity	+

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

¹⁷⁵Os

mass number	175
neutron number	99
relative atomic mass	174.956945126 ± 0.00001264 Da
g-factor
natural abundance
radioactivity	☢️ elven radyoweythresek
half-life	1.4 ± 0.1 m
spin	5/2
nuclear quadrupole moment
dydhyas diskudhans	1972
parity	-

decay mode	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

¹⁷⁶Os

mass number	176
neutron number	100
relative atomic mass	175.954770315 ± 0.000011754 Da
g-factor	0
natural abundance
radioactivity	☢️ elven radyoweythresek
half-life	3.6 ± 0.5 m
spin	0
nuclear quadrupole moment	0
dydhyas diskudhans	1970
parity	+

decay mode	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

¹⁷⁷Os

mass number	177
neutron number	101
relative atomic mass	176.954957902 ± 0.000015687 Da
g-factor
natural abundance
radioactivity	☢️ elven radyoweythresek
half-life	3 ± 0.2 m
spin	1/2
nuclear quadrupole moment	0
dydhyas diskudhans	1970
parity	-

decay mode	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

¹⁷⁸Os

mass number	178
neutron number	102
relative atomic mass	177.953253334 ± 0.000014634 Da
g-factor	0
natural abundance
radioactivity	☢️ elven radyoweythresek
half-life	5 ± 0.4 m
spin	0
nuclear quadrupole moment	0
dydhyas diskudhans	1967
parity	+

decay mode	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

¹⁷⁹Os

mass number	179
neutron number	103
relative atomic mass	178.953815985 ± 0.000016645 Da
g-factor
natural abundance
radioactivity	☢️ elven radyoweythresek
half-life	6.5 ± 0.3 m
spin	1/2
nuclear quadrupole moment	0
dydhyas diskudhans	1968
parity	-

decay mode	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

¹⁸⁰Os

mass number	180
neutron number	104
relative atomic mass	179.952381665 ± 0.000016878 Da
g-factor	0
natural abundance
radioactivity	☢️ elven radyoweythresek
half-life	21.5 ± 0.4 m
spin	0
nuclear quadrupole moment	0
dydhyas diskudhans	1967
parity	+

decay mode	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

¹⁸¹Os

mass number	181
neutron number	105
relative atomic mass	180.953247188 ± 0.000027201 Da
g-factor
natural abundance
radioactivity	☢️ elven radyoweythresek
half-life	105 ± 3 m
spin	1/2
nuclear quadrupole moment	0
dydhyas diskudhans	1966
parity	-

decay mode	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

¹⁸²Os

mass number	182
neutron number	106
relative atomic mass	181.952110154 ± 0.000023344 Da
g-factor	0
natural abundance
radioactivity	☢️ elven radyoweythresek
half-life	21.84 ± 0.2 h
spin	0
nuclear quadrupole moment	0
dydhyas diskudhans	1950
parity	+

decay mode	intensity
ϵ (electron capture)	100%

¹⁸³Os

mass number	183
neutron number	107
relative atomic mass	182.953125028 ± 0.000053428 Da
g-factor	0.17644444444444 ± 0.0031111111111111
natural abundance
radioactivity	☢️ elven radyoweythresek
half-life	13 ± 0.5 h
spin	9/2
nuclear quadrupole moment	3.1 ± 0.3
dydhyas diskudhans	1950
parity	+

decay mode	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

¹⁸⁴Os

mass number	184
neutron number	108
relative atomic mass	183.952492919 ± 0.00000089 Da
g-factor	0
natural abundance	0.02 ± 0.02
radioactivity	☢️ elven radyoweythresek
half-life	11.2 ± 2.3 Ty
spin	0
nuclear quadrupole moment	0
dydhyas diskudhans	1937
parity	+

decay mode	intensity
α (α emission)
2β⁺ (double β⁺ decay)

¹⁸⁵Os

mass number	185
neutron number	109
relative atomic mass	184.954045969 ± 0.000000893 Da
g-factor
natural abundance
radioactivity	☢️ elven radyoweythresek
half-life	92.95 ± 0.09 d
spin	1/2
nuclear quadrupole moment	0
dydhyas diskudhans	1947
parity	-

decay mode	intensity
ϵ (electron capture)	100%

¹⁸⁶Os

mass number	186
neutron number	110
relative atomic mass	185.953837569 ± 0.000000816 Da
g-factor	0
natural abundance	1.59 ± 0.64
radioactivity	☢️ elven radyoweythresek
half-life	2 ± 1.1 Py
spin	0
nuclear quadrupole moment	0
dydhyas diskudhans	1931
parity	+

decay mode	intensity
α (α emission)	100%

¹⁸⁷Os

mass number	187
neutron number	111
relative atomic mass	186.955749569 ± 0.000000791 Da
g-factor
natural abundance	1.96 ± 0.17
radioactivity	☢️ elven radyoweythresek
half-life
spin	1/2
nuclear quadrupole moment	0
dydhyas diskudhans	1931
parity	-

decay mode	intensity
α (α emission)

¹⁸⁸Os

mass number	188
neutron number	112
relative atomic mass	187.955837292 ± 0.000000788 Da
g-factor	0
natural abundance	13.24 ± 0.27
radioactivity	☢️ elven radyoweythresek
half-life
spin	0
nuclear quadrupole moment	0
dydhyas diskudhans	1931
parity	+

decay mode	intensity
α (α emission)

¹⁸⁹Os

mass number	189
neutron number	113
relative atomic mass	188.958145949 ± 0.000000715 Da
g-factor
natural abundance	16.15 ± 0.23
radioactivity	☢️ elven radyoweythresek
half-life
spin	3/2
nuclear quadrupole moment	0.86 ± 0.03
dydhyas diskudhans	1931
parity	-

decay mode	intensity
α (α emission)

¹⁹⁰Os

mass number	190
neutron number	114
relative atomic mass	189.958445442 ± 0.000000697 Da
g-factor	0
natural abundance	26.26 ± 0.2
radioactivity	☢️ elven radyoweythresek
half-life
spin	0
nuclear quadrupole moment	0
dydhyas diskudhans	1931
parity	+

decay mode	intensity
α (α emission)

¹⁹¹Os

mass number	191
neutron number	115
relative atomic mass	190.960928105 ± 0.000000707 Da
g-factor	0.21333333333333 ± 0.0066666666666667
natural abundance
radioactivity	☢️ elven radyoweythresek
half-life	14.99 ± 0.02 d
spin	9/2
nuclear quadrupole moment	2.53 ± 0.16
dydhyas diskudhans	1940
parity	-

decay mode	intensity
β⁻ (β⁻ decay)	100%

¹⁹²Os

mass number	192
neutron number	116
relative atomic mass	191.961478765 ± 0.000002484 Da
g-factor	0
natural abundance	40.78 ± 0.32
radioactivity	☢️ elven radyoweythresek
half-life
spin	0
nuclear quadrupole moment	0
dydhyas diskudhans	1931
parity	+

decay mode	intensity
2β⁻ (double β⁻ decay)
α (α emission)

¹⁹³Os

mass number	193
neutron number	117
relative atomic mass	192.964149637 ± 0.00000249 Da
g-factor	0.48666666666667 ± 0.0013333333333333
natural abundance
radioactivity	☢️ elven radyoweythresek
half-life	29.83 ± 0.018 h
spin	3/2
nuclear quadrupole moment
dydhyas diskudhans	1940
parity	-

decay mode	intensity
β⁻ (β⁻ decay)	100%

¹⁹⁴Os

mass number	194
neutron number	118
relative atomic mass	193.965179407 ± 0.000002579 Da
g-factor	0
natural abundance
radioactivity	☢️ elven radyoweythresek
half-life	6 ± 0.2 y
spin	0
nuclear quadrupole moment	0
dydhyas diskudhans	1951
parity	+

decay mode	intensity
β⁻ (β⁻ decay)	100%

¹⁹⁵Os

mass number	195
neutron number	119
relative atomic mass	194.968318 ± 0.00006 Da
g-factor
natural abundance
radioactivity	☢️ elven radyoweythresek
half-life	6.5 ± 1.1 m
spin	3/2
nuclear quadrupole moment
dydhyas diskudhans	2004
parity	-

decay mode	intensity
β⁻ (β⁻ decay)	100%

¹⁹⁶Os

mass number	196
neutron number	120
relative atomic mass	195.969643261 ± 0.000043 Da
g-factor	0
natural abundance
radioactivity	☢️ elven radyoweythresek
half-life	34.9 ± 0.2 m
spin	0
nuclear quadrupole moment	0
dydhyas diskudhans	1977
parity	+

decay mode	intensity
β⁻ (β⁻ decay)	100%

¹⁹⁷Os

mass number	197
neutron number	121
relative atomic mass	196.973076 ± 0.000215 Da
g-factor
natural abundance
radioactivity	☢️ elven radyoweythresek
half-life	93 ± 7 s
spin	5/2
nuclear quadrupole moment
dydhyas diskudhans	2003
parity	-

decay mode	intensity
β⁻ (β⁻ decay)	100%

¹⁹⁸Os

mass number	198
neutron number	122
relative atomic mass	197.974664 ± 0.000215 Da
g-factor	0
natural abundance
radioactivity	☢️ elven radyoweythresek
half-life	125 ± 28 s
spin	0
nuclear quadrupole moment	0
dydhyas diskudhans	2008
parity	+

decay mode	intensity
β⁻ (β⁻ decay)	100%

¹⁹⁹Os

mass number	199
neutron number	123
relative atomic mass	198.978239 ± 0.000215 Da
g-factor
natural abundance
radioactivity	☢️ elven radyoweythresek
half-life	6 ± 3 s
spin	5/2
nuclear quadrupole moment
dydhyas diskudhans	2008
parity	-

decay mode	intensity
β⁻ (β⁻ decay)	100%

²⁰⁰Os

mass number	200
neutron number	124
relative atomic mass	199.980086 ± 0.000322 Da
g-factor	0
natural abundance
radioactivity	☢️ elven radyoweythresek
half-life	7 ± 4 s
spin	0
nuclear quadrupole moment	0
dydhyas diskudhans	2005
parity	+

decay mode	intensity
β⁻ (β⁻ decay)	100%

²⁰¹Os

mass number	201
neutron number	125
relative atomic mass	200.984069 ± 0.000322 Da
g-factor
natural abundance
radioactivity	☢️ elven radyoweythresek
half-life
spin	1/2
nuclear quadrupole moment	0
dydhyas diskudhans	2009
parity	-

decay mode	intensity
β⁻ (β⁻ decay)

²⁰²Os

mass number	202
neutron number	126
relative atomic mass	201.986548 ± 0.000429 Da
g-factor	0
natural abundance
radioactivity	☢️ elven radyoweythresek
half-life
spin	0
nuclear quadrupole moment	0
dydhyas diskudhans	2009
parity	+

decay mode	intensity
β⁻ (β⁻ decay)

²⁰³Os

mass number	203
neutron number	127
relative atomic mass	202.992195 ± 0.000429 Da
g-factor
natural abundance
radioactivity	☢️ elven radyoweythresek
half-life
spin	9/2
nuclear quadrupole moment
dydhyas diskudhans	2012
parity	+

decay mode	intensity
β⁻ (β⁻ decay)
β⁻ n (β⁻-delayed neutron emission)

istori

diskudher po dismyger	Smithson Tenant
location of discovery	England
dydhyas diskudhans	1804
Etymologyl	Greek: osmê (odor).
pronunciation	OZ-mi-em (en)

source

Abundance
Abundance in Earth's crust	0.0015 mg/kg
natural abundance (Keynvor)
natural abundance (Korf)
natural abundance (meteoroid)	0.000066 %
natural abundance (Howl)	0.0000002 %
Abundance in Universe	0.0000003 %

Nuclear Screening Constants

1	s	1.4701
2	p	4.4502
2	s	19.8502
3	d	13.5253
3	p	21.7483
3	s	22.5727
4	d	37.142
4	f	38.8472
4	p	34.856
4	s	33.9048
5	d	58.003
5	p	53.09
5	s	50.905
6	s	65.677

Osmyum on ChemicalAid

Osmyum (Os)

Physical Property

Chemical Property

other

Isotopes of Osmium

161Os

162Os

163Os

164Os

165Os

166Os

167Os

168Os

169Os

170Os

171Os

172Os

173Os

174Os

175Os

176Os

177Os

178Os

179Os

180Os

181Os

182Os

183Os

184Os

185Os

186Os

187Os

188Os

189Os

190Os

191Os

192Os

193Os

194Os

195Os

196Os

197Os

198Os

199Os

200Os

201Os

202Os

203Os

istori

source

Nuclear Screening Constants

¹⁶¹Os

¹⁶²Os

¹⁶³Os

¹⁶⁴Os

¹⁶⁵Os

¹⁶⁶Os

¹⁶⁷Os

¹⁶⁸Os

¹⁶⁹Os

¹⁷⁰Os

¹⁷¹Os

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¹⁷⁸Os

¹⁷⁹Os

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¹⁸⁴Os

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¹⁸⁶Os

¹⁸⁷Os

¹⁸⁸Os

¹⁸⁹Os

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¹⁹⁴Os

¹⁹⁵Os

¹⁹⁶Os

¹⁹⁷Os

¹⁹⁸Os

¹⁹⁹Os

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²⁰³Os