Кобалт

Кобалт (Co)

chemical element with symbol Co and atomic number 27
Atomic Number27
Atomic Weight58.933194
Адади массавӣ59
Group9
Period4
Blockd
proton27 p+
neutron32 n0
electron27 e-
Animated Bohr model of Co (Кобалт)

Хусусияти Физикӣ

Atomic Radius
135 pm
molar volume
covalent radius
111 pm
Metallic Radius
116 pm
ionic radius
58 pm
Crystal Radius
72 pm
Van der Waals radius
200 pm
зичӣ
8,86 g/cm³
Atomic Radii Of The Elements: Кобалт0102030405060708090100110120130140150160170180190200pmAtomic RadiusCovalent RadiusMetallic RadiusVan der Waals radius

Chemical Property

энергия
proton affinity
742,7 kJ/mol
electron affinity
0,66225646 eV/particle
ionization energy
7,88101 eV/particle
ionization energy of Co (Кобалт)
enthalpy of vaporization
389,1 kJ/mol
гармои гудозиш
15,48 kJ/mol
standard enthalpy of formation
426,7 kJ/mol
electron
Абри электронӣ2, 8, 15, 2
Bohr model: Co (Кобалт)
valence electron2
Lewis structure: Co (Кобалт)
electron configuration[Ar] 3d7 4s2
1s2 2s2 2p6 3s2 3p6 3d7 4s2
Enhanced Bohr model of Co (Кобалт)
Orbital Diagram of Co (Кобалт)
oxidation number-3, -1, 0, 1, 2, 3, 4, 5
electronegativity
1.88
Electrophilicity Index
1,2638504937543713 eV/particle
fundamental state of matter
phase of matterSolid
gaseous state of matter
Boiling Point
3 200,15 K
Melting Point
1 768,15 K
critical pressure
critical temperature
triple point
appearance
Ранг
Gray
appearancehard lustrous gray metal
refractive index
thermodynamic material property
Thermal Conductivity
thermal expansion
0,000013 1/K
molar heat capacity
24,81 J/(mol K)
Specific Heat Capacity
heat capacity ratio
electrical properties
навъConductor
electrical conductivity
17 MS/m
electrical resistivity
0,00000006000000000002 m Ω
superconductivity
magnetism
навъferromagnetic
magnetic susceptibility (Mass)
magnetic susceptibility (Molar)
magnetic susceptibility (Volume)
magnetic ordering
Curie temperature
1 394 K
Néel temperature
сохт
Crystal StructureSimple Hexagonal (HEX)
lattice constant
2,51 Å
Lattice Anglesπ/2, π/2, 2 π/3
mechanical property
hardness
5 MPa
bulk modulus
180 GPa
shear modulus
75 GPa
Young's modulus
209 GPa
Poisson's ratio
0,31
speed of sound
4 720 m/s
classification
CategoryTransition metals, Transition metals
CAS GroupVIIIA
IUPAC GroupVIII
Glawe Number70
Mendeleev Number63
Pettifor Number64
Geochemical Classfirst series transition metal
Goldschmidt classificationsiderophile

other

Gas Basicity
719,8 kJ/mol
polarizability
55 ± 4 a₀
C6 Dispersion Coefficient
408 a₀
allotrope
Neutron cross section
37,2
Neutron Mass Absorption
0,021
ададҳои квантӣ4F9/2
space group194 (P63/mmc)

Isotopes of Cobalt

Stable Isotopes1
Unstable Isotopes31
Natural Isotopes1

47Co

Адади массавӣ47
neutron number20
relative atomic mass
47,011401 ± 0,000644 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
spin7/2
nuclear quadrupole moment
таърихи кашф
parity-

decay modeintensity
p (proton emission)

48Co

Адади массавӣ48
neutron number21
relative atomic mass
48,001857 ± 0,000537 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
spin6
nuclear quadrupole moment
таърихи кашф
parity+

decay modeintensity
p (proton emission)

49Co

Адади массавӣ49
neutron number22
relative atomic mass
48,989501 ± 0,000537 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
spin7/2
nuclear quadrupole moment
таърихи кашф
parity-

decay modeintensity
p (proton emission)

50Co

Адади массавӣ50
neutron number23
relative atomic mass
49,981117 ± 0,000135 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
38,8 ± 0,2 ms
spin6
nuclear quadrupole moment
таърихи кашф1987
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%
β+ p (β+-delayed proton emission)70.5%
2p (2-proton emission)

51Co

Адади массавӣ51
neutron number24
relative atomic mass
50,970647 ± 0,000052 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
68,8 ± 1,9 ms
spin7/2
nuclear quadrupole moment
таърихи кашф1987
parity-

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%
β+ p (β+-delayed proton emission)3.8%

52Co

Адади массавӣ52
neutron number25
relative atomic mass
51,963130224 ± 0,000005669 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
111,7 ± 2,1 ms
spin6
nuclear quadrupole moment
таърихи кашф1987
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%
β+ p (β+-delayed proton emission)

53Co

Адади массавӣ53
neutron number26
relative atomic mass
52,954203278 ± 0,000001854 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
244,6 ± 2,8 ms
spin7/2
nuclear quadrupole moment
таърихи кашф1970
parity-

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

54Co

Адади массавӣ54
neutron number27
relative atomic mass
53,948459075 ± 0,00000038 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
193,27 ± 0,06 ms
spin0
nuclear quadrupole moment
0
таърихи кашф1952
parity+

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

55Co

Адади массавӣ55
neutron number28
relative atomic mass
54,941996416 ± 0,000000434 Da
g-factor
1,3777142857143 ± 0,00085714285714286
natural abundance
radioactivity☢️ radioactive element
half-life
17,53 ± 0,03 h
spin7/2
nuclear quadrupole moment
таърихи кашф1938
parity-

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

56Co

Адади массавӣ56
neutron number29
relative atomic mass
55,939838032 ± 0,00000051 Da
g-factor
0,9625 ± 0,0025
natural abundance
radioactivity☢️ radioactive element
half-life
77,236 ± 0,026 d
spin4
nuclear quadrupole moment
0,25 ± 0,09
таърихи кашф1941
parity+

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

57Co

Адади массавӣ57
neutron number30
relative atomic mass
56,936289819 ± 0,000000553 Da
g-factor
1,3485714285714 ± 0,0028571428571429
natural abundance
radioactivity☢️ radioactive element
half-life
271,811 ± 0,032 d
spin7/2
nuclear quadrupole moment
0,54 ± 0,1
таърихи кашф1941
parity-

decay modeintensity
ϵ (electron capture)100%

58Co

Адади массавӣ58
neutron number31
relative atomic mass
57,935751292 ± 0,000001237 Da
g-factor
2,022 ± 0,004
natural abundance
radioactivity☢️ radioactive element
half-life
70,844 ± 0,02 d
spin2
nuclear quadrupole moment
0,23 ± 0,03
таърихи кашф1941
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%
e+ (positron emission)14.79%
ϵ (electron capture)85.21%

59Co

Адади массавӣ59
neutron number32
relative atomic mass
58,933193524 ± 0,000000426 Da
g-factor
natural abundance
100
radioactivitystable isotope
half-lifeNot Radioactive ☢️
spin7/2
nuclear quadrupole moment
0,42 ± 0,03
таърихи кашф1923
parity-

60Co

Адади массавӣ60
neutron number33
relative atomic mass
59,933815536 ± 0,000000433 Da
g-factor
0,7598 ± 0,0016
natural abundance
radioactivity☢️ radioactive element
half-life
5,2714 ± 0,0006 y
spin5
nuclear quadrupole moment
0,46 ± 0,06
таърихи кашф1941
parity+

decay modeintensity
β (β decay)100%

61Co

Адади массавӣ61
neutron number34
relative atomic mass
60,932476031 ± 0,000000901 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
1,649 ± 0,005 h
spin7/2
nuclear quadrupole moment
таърихи кашф1947
parity-

decay modeintensity
β (β decay)100%

62Co

Адади массавӣ62
neutron number35
relative atomic mass
61,934058198 ± 0,00001994 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
1,54 ± 0,1 m
spin2
nuclear quadrupole moment
таърихи кашф1949
parity

decay modeintensity
β (β decay)100%

63Co

Адади массавӣ63
neutron number36
relative atomic mass
62,93359963 ± 0,000019941 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
26,9 ± 0,4 s
spin7/2
nuclear quadrupole moment
таърихи кашф1960
parity-

decay modeintensity
β (β decay)100%

64Co

Адади массавӣ64
neutron number37
relative atomic mass
63,935810176 ± 0,000021476 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
300 ± 30 ms
spin1
nuclear quadrupole moment
таърихи кашф1969
parity+

decay modeintensity
β (β decay)100%

65Co

Адади массавӣ65
neutron number38
relative atomic mass
64,936462071 ± 0,000002235 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
1,16 ± 0,03 s
spin7/2
nuclear quadrupole moment
таърихи кашф1978
parity

decay modeintensity
β (β decay)100%

66Co

Адади массавӣ66
neutron number39
relative atomic mass
65,939442943 ± 0,000015 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
194 ± 17 ms
spin1
nuclear quadrupole moment
таърихи кашф1985
parity+

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)

67Co

Адади массавӣ67
neutron number40
relative atomic mass
66,940609625 ± 0,000006917 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
329 ± 28 ms
spin7/2
nuclear quadrupole moment
таърихи кашф1985
parity-

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)

68Co

Адади массавӣ68
neutron number41
relative atomic mass
67,944559401 ± 0,000004142 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
200 ± 20 ms
spin7
nuclear quadrupole moment
таърихи кашф1985
parity-

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)

69Co

Адади массавӣ69
neutron number42
relative atomic mass
68,945909 ± 0,000092 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
180 ± 20 ms
spin7/2
nuclear quadrupole moment
таърихи кашф1985
parity-

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)

70Co

Адади массавӣ70
neutron number43
relative atomic mass
69,9500534 ± 0,0000118 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
508 ± 7 ms
spin1
nuclear quadrupole moment
таърихи кашф1998
parity+

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)
2n (2-neutron emission)

71Co

Адади массавӣ71
neutron number44
relative atomic mass
70,952366923 ± 0,00049923 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
80 ± 3 ms
spin7/2
nuclear quadrupole moment
таърихи кашф1992
parity-

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)3%

72Co

Адади массавӣ72
neutron number45
relative atomic mass
71,956736 ± 0,000322 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
51,5 ± 0,3 ms
spin6
nuclear quadrupole moment
таърихи кашф1992
parity-

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)4%
2n (2-neutron emission)

73Co

Адади массавӣ73
neutron number46
relative atomic mass
72,959238 ± 0,000322 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
42 ± 0,8 ms
spin7/2
nuclear quadrupole moment
таърихи кашф1995
parity-

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)6%
2n (2-neutron emission)

74Co

Адади массавӣ74
neutron number47
relative atomic mass
73,963993 ± 0,000429 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
31,3 ± 1,3 ms
spin7
nuclear quadrupole moment
таърихи кашф1995
parity-

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)18%
2n (2-neutron emission)

75Co

Адади массавӣ75
neutron number48
relative atomic mass
74,967192 ± 0,000429 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
26,5 ± 1,2 ms
spin7/2
nuclear quadrupole moment
таърихи кашф1995
parity-

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)16%
2n (2-neutron emission)

76Co

Адади массавӣ76
neutron number49
relative atomic mass
75,972453 ± 0,000537 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
23 ± 6 ms
spin8
nuclear quadrupole moment
таърихи кашф2010
parity-

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)
2n (2-neutron emission)

77Co

Адади массавӣ77
neutron number50
relative atomic mass
76,976479 ± 0,000644 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
15 ± 6 ms
spin7/2
nuclear quadrupole moment
таърихи кашф2014
parity-

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)
2n (2-neutron emission)
3n (3-neutron emission)

78Co

Адади массавӣ78
neutron number51
relative atomic mass
77,983553 ± 0,000751 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
spin
nuclear quadrupole moment
таърихи кашф2017
parity

decay modeintensity
β (β decay)
Kobalt electrolytic and 1cm3 cube

таърих

кошифGeorge Brandt
макони кашфSweden
таърихи кашф1739
РешашиносӣGerman: kobold (goblin).
pronunciationKO-bolt (Англисӣ)

source

Abundance
Abundance in Earth's crust
natural abundance (Уқёнус)
0,00002 mg/L
natural abundance (human body)
0,000002 %
natural abundance (meteoroid)
0,059 %
natural abundance (Офтоб)
0,0004 %
Abundance in Universe
0,0003 %

Nuclear Screening Constants

1s0.6332
2p3.9076
2s7.595
3d15.1446
3p13.5654
3s12.6777
4s21.4236