Kobalt

Kobalt (Co)

chemical element with symbol Co and atomic number 27
Atomic Number27
Atomic Weight58.933194
Nombor jisim59
Group9
Period4
Blockd
proton27 p+
neutron32 n0
Elektron27 e-
Animated Model Bohr of Co (Kobalt)

Sifat Fizikal

Jejari Atom
135 pm
molar volume
Jejari kovalen
111 pm
Metallic Radius
116 pm
ionic radius
58 pm
Crystal Radius
72 pm
Jejari van der Waals
200 pm
ketumpatan
8.86 g/cm³
Atomic Radii Of The Elements: Kobalt0102030405060708090100110120130140150160170180190200pmJejari AtomJejari KovalenMetallic RadiusJejari van der Waals

Sifat Kimia

tenaga
proton affinity
742.7 kJ/mol
Pertalian elektron
0.66225646 eV/particle
ionization energy
7.88101 eV/particle
ionization energy of Co (Kobalt)
Entalpi pengewapan
389.1 kJ/mol
entalpi pelakuran
15.48 kJ/mol
standard enthalpy of formation
426.7 kJ/mol
Elektron
Petala elektron2, 8, 15, 2
Model Bohr: Co (Kobalt)
Elektron valens2
Teori ion Lewis: Co (Kobalt)
tatarajah elektron[Ar] 3d7 4s2
1s2 2s2 2p6 3s2 3p6 3d7 4s2
Enhanced Model Bohr of Co (Kobalt)
Orbital Diagram of Co (Kobalt)
Keadaan pengoksidaan-3, -1, 0, 1, 2, 3, 4, 5
Keelektronegatifan
1.88
Electrophilicity Index
1.2638504937543713 eV/particle
keadaan jirim asas
fasa jirimSolid
gaseous state of matter
Boiling Point
3,200.15 K
Melting Point
1,768.15 K
critical pressure
critical temperature
triple point
rupa
warna
Gray
rupahard lustrous gray metal
indeks biasan
sifat bahan
Thermal Conductivity
Pengembangan terma
0.000013 1/K
molar heat capacity
24.81 J/(mol K)
Specific Heat Capacity
0.421 J/(g⋅K)
heat capacity ratio
electrical properties
typeConductor
Kekonduksian elektrik
17 MS/m
Kerintangan dan kekonduksian elektrik
0.00000006000000000002 m Ω
Kesuperkonduksian
kemagnetan
typeferromagnetic
magnetic susceptibility (Mass)
magnetic susceptibility (Molar)
magnetic susceptibility (Volume)
magnetic ordering
Suhu Curie
1,394 K
Néel temperature
struktur
Crystal StructureSimple Hexagonal (HEX)
lattice constant
2.51 Å
Lattice Anglesπ/2, π/2, 2 π/3
mechanical property
hardness
5 MPa
Modulus pukal
180 GPa
shear modulus
75 GPa
Young's modulus
209 GPa
Nisbah Poisson
0.31
Kelajuan bunyi
4,720 m/s
pengelasan
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
Nombor kuantum4F9/2
space group194 (P63/mmc)

Isotopes of Cobalt

Stable Isotopes1
Unstable Isotopes31
Natural Isotopes1

47Co

Nombor jisim47
nombor neutron20
jisim atom relatif
47.011401 ± 0.000644 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
Spin7/2
nuclear quadrupole moment
tarikh penemuan
parity-

decay modeKeamatan (fizik)
p (proton emission)

48Co

Nombor jisim48
nombor neutron21
jisim atom relatif
48.001857 ± 0.000537 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
Spin6
nuclear quadrupole moment
tarikh penemuan
parity+

decay modeKeamatan (fizik)
p (proton emission)

49Co

Nombor jisim49
nombor neutron22
jisim atom relatif
48.989501 ± 0.000537 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
Spin7/2
nuclear quadrupole moment
tarikh penemuan
parity-

decay modeKeamatan (fizik)
p (proton emission)

50Co

Nombor jisim50
nombor neutron23
jisim atom relatif
49.981117 ± 0.000135 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
38.8 ± 0.2 ms
Spin6
nuclear quadrupole moment
tarikh penemuan1987
parity+

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

51Co

Nombor jisim51
nombor neutron24
jisim atom relatif
50.970647 ± 0.000052 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
68.8 ± 1.9 ms
Spin7/2
nuclear quadrupole moment
tarikh penemuan1987
parity-

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

52Co

Nombor jisim52
nombor neutron25
jisim atom relatif
51.963130224 ± 0.000005669 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
111.7 ± 2.1 ms
Spin6
nuclear quadrupole moment
tarikh penemuan1987
parity+

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

53Co

Nombor jisim53
nombor neutron26
jisim atom relatif
52.954203278 ± 0.000001854 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
244.6 ± 2.8 ms
Spin7/2
nuclear quadrupole moment
tarikh penemuan1970
parity-

decay modeKeamatan (fizik)
β+ (β+ decay; β+ = ϵ + e+)100%

54Co

Nombor jisim54
nombor neutron27
jisim atom relatif
53.948459075 ± 0.00000038 Da
g-factor
0
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
193.27 ± 0.06 ms
Spin0
nuclear quadrupole moment
0
tarikh penemuan1952
parity+

decay modeKeamatan (fizik)
β+ (β+ decay; β+ = ϵ + e+)100%

55Co

Nombor jisim55
nombor neutron28
jisim atom relatif
54.941996416 ± 0.000000434 Da
g-factor
1.3777142857143 ± 0.00085714285714286
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
17.53 ± 0.03 h
Spin7/2
nuclear quadrupole moment
tarikh penemuan1938
parity-

decay modeKeamatan (fizik)
β+ (β+ decay; β+ = ϵ + e+)100%

56Co

Nombor jisim56
nombor neutron29
jisim atom relatif
55.939838032 ± 0.00000051 Da
g-factor
0.9625 ± 0.0025
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
77.236 ± 0.026 d
Spin4
nuclear quadrupole moment
0.25 ± 0.09
tarikh penemuan1941
parity+

decay modeKeamatan (fizik)
β+ (β+ decay; β+ = ϵ + e+)100%

57Co

Nombor jisim57
nombor neutron30
jisim atom relatif
56.936289819 ± 0.000000553 Da
g-factor
1.3485714285714 ± 0.0028571428571429
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
271.811 ± 0.032 d
Spin7/2
nuclear quadrupole moment
0.54 ± 0.1
tarikh penemuan1941
parity-

decay modeKeamatan (fizik)
ϵ (electron capture)100%

58Co

Nombor jisim58
nombor neutron31
jisim atom relatif
57.935751292 ± 0.000001237 Da
g-factor
2.022 ± 0.004
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
70.844 ± 0.02 d
Spin2
nuclear quadrupole moment
0.23 ± 0.03
tarikh penemuan1941
parity+

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

59Co

Nombor jisim59
nombor neutron32
jisim atom relatif
58.933193524 ± 0.000000426 Da
g-factor
natural abundance
100
Reputan radioaktifIsotop stabil
setengah hayatNot Radioactive ☢️
Spin7/2
nuclear quadrupole moment
0.42 ± 0.03
tarikh penemuan1923
parity-

60Co

Nombor jisim60
nombor neutron33
jisim atom relatif
59.933815536 ± 0.000000433 Da
g-factor
0.7598 ± 0.0016
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
5.2714 ± 0.0006 y
Spin5
nuclear quadrupole moment
0.46 ± 0.06
tarikh penemuan1941
parity+

decay modeKeamatan (fizik)
β (β decay)100%

61Co

Nombor jisim61
nombor neutron34
jisim atom relatif
60.932476031 ± 0.000000901 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
1.649 ± 0.005 h
Spin7/2
nuclear quadrupole moment
tarikh penemuan1947
parity-

decay modeKeamatan (fizik)
β (β decay)100%

62Co

Nombor jisim62
nombor neutron35
jisim atom relatif
61.934058198 ± 0.00001994 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
1.54 ± 0.1 m
Spin2
nuclear quadrupole moment
tarikh penemuan1949
parity

decay modeKeamatan (fizik)
β (β decay)100%

63Co

Nombor jisim63
nombor neutron36
jisim atom relatif
62.93359963 ± 0.000019941 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
26.9 ± 0.4 s
Spin7/2
nuclear quadrupole moment
tarikh penemuan1960
parity-

decay modeKeamatan (fizik)
β (β decay)100%

64Co

Nombor jisim64
nombor neutron37
jisim atom relatif
63.935810176 ± 0.000021476 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
300 ± 30 ms
Spin1
nuclear quadrupole moment
tarikh penemuan1969
parity+

decay modeKeamatan (fizik)
β (β decay)100%

65Co

Nombor jisim65
nombor neutron38
jisim atom relatif
64.936462071 ± 0.000002235 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
1.16 ± 0.03 s
Spin7/2
nuclear quadrupole moment
tarikh penemuan1978
parity

decay modeKeamatan (fizik)
β (β decay)100%

66Co

Nombor jisim66
nombor neutron39
jisim atom relatif
65.939442943 ± 0.000015 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
194 ± 17 ms
Spin1
nuclear quadrupole moment
tarikh penemuan1985
parity+

decay modeKeamatan (fizik)
β (β decay)100%
β n (β-delayed neutron emission)

67Co

Nombor jisim67
nombor neutron40
jisim atom relatif
66.940609625 ± 0.000006917 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
329 ± 28 ms
Spin7/2
nuclear quadrupole moment
tarikh penemuan1985
parity-

decay modeKeamatan (fizik)
β (β decay)100%
β n (β-delayed neutron emission)

68Co

Nombor jisim68
nombor neutron41
jisim atom relatif
67.944559401 ± 0.000004142 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
200 ± 20 ms
Spin7
nuclear quadrupole moment
tarikh penemuan1985
parity-

decay modeKeamatan (fizik)
β (β decay)100%
β n (β-delayed neutron emission)

69Co

Nombor jisim69
nombor neutron42
jisim atom relatif
68.945909 ± 0.000092 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
180 ± 20 ms
Spin7/2
nuclear quadrupole moment
tarikh penemuan1985
parity-

decay modeKeamatan (fizik)
β (β decay)100%
β n (β-delayed neutron emission)

70Co

Nombor jisim70
nombor neutron43
jisim atom relatif
69.9500534 ± 0.0000118 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
508 ± 7 ms
Spin1
nuclear quadrupole moment
tarikh penemuan1998
parity+

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

71Co

Nombor jisim71
nombor neutron44
jisim atom relatif
70.952366923 ± 0.00049923 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
80 ± 3 ms
Spin7/2
nuclear quadrupole moment
tarikh penemuan1992
parity-

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

72Co

Nombor jisim72
nombor neutron45
jisim atom relatif
71.956736 ± 0.000322 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
51.5 ± 0.3 ms
Spin6
nuclear quadrupole moment
tarikh penemuan1992
parity-

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

73Co

Nombor jisim73
nombor neutron46
jisim atom relatif
72.959238 ± 0.000322 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
42 ± 0.8 ms
Spin7/2
nuclear quadrupole moment
tarikh penemuan1995
parity-

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

74Co

Nombor jisim74
nombor neutron47
jisim atom relatif
73.963993 ± 0.000429 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
31.3 ± 1.3 ms
Spin7
nuclear quadrupole moment
tarikh penemuan1995
parity-

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

75Co

Nombor jisim75
nombor neutron48
jisim atom relatif
74.967192 ± 0.000429 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
26.5 ± 1.2 ms
Spin7/2
nuclear quadrupole moment
tarikh penemuan1995
parity-

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

76Co

Nombor jisim76
nombor neutron49
jisim atom relatif
75.972453 ± 0.000537 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
23 ± 6 ms
Spin8
nuclear quadrupole moment
tarikh penemuan2010
parity-

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

77Co

Nombor jisim77
nombor neutron50
jisim atom relatif
76.976479 ± 0.000644 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
15 ± 6 ms
Spin7/2
nuclear quadrupole moment
tarikh penemuan2014
parity-

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

78Co

Nombor jisim78
nombor neutron51
jisim atom relatif
77.983553 ± 0.000751 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
Spin
nuclear quadrupole moment
tarikh penemuan2017
parity

decay modeKeamatan (fizik)
β (β decay)
Kobalt electrolytic and 1cm3 cube

sejarah

penemu atau perekaGeorge Brandt
tempat penemuanSweden
tarikh penemuan1739
EtimologiGerman: kobold (goblin).
sebutanKO-bolt (Inggeris)

sumber

Abundance
Abundance in Earth's crust
natural abundance (lautan)
0.00002 mg/L
natural abundance (Tubuh manusia)
0.000002 %
natural abundance (Meteoroid)
0.059 %
natural abundance (Matahari)
0.0004 %
Abundance in Universe
0.0003 %

Nuclear Screening Constants

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