Kobalt

Kobalt (Co)

hemijski element sa simbolom Co i atomskim brojem 27
Atomic Number27
Atomic Weight58.933194
Maseni broj59
Group9
Period4
Blockd
Proton27 p+
Neutron32 n0
Elektron27 e-
Animated Bohrov model atoma of Co (Kobalt)

Physical Property

Atomski Radijus
135 pm
Molarni volumen
covalent radius
111 pm
Metallic Radius
116 pm
Ionski radijus
58 pm
Crystal Radius
72 pm
Van der Waalsov radijus
200 pm
gustoća
8,86 g/cm³
Atomic Radii Of The Elements: Kobalt0102030405060708090100110120130140150160170180190200pmAtomski RadijusCovalent RadiusMetallic RadiusVan der Waalsov radijus

Chemical Property

energija
proton affinity
742,7 kJ/mol
electron affinity
0,66225646 eV/particle
ionization energy
7,88101 eV/particle
ionization energy of Co (Kobalt)
Toplota isparavanja
389,1 kJ/mol
toplota topljenja
15,48 kJ/mol
standard enthalpy of formation
426,7 kJ/mol
Elektron
electron shell2, 8, 15, 2
Bohrov model atoma: Co (Kobalt)
Valentni elektron2
Lewis structure: Co (Kobalt)
electron configuration[Ar] 3d7 4s2
1s2 2s2 2p6 3s2 3p6 3d7 4s2
Enhanced Bohrov model atoma of Co (Kobalt)
Orbital Diagram of Co (Kobalt)
oksidacijsko stanje-3, -1, 0, 1, 2, 3, 4, 5
Elektronegativnost
1.88
Electrophilicity Index
1,2638504937543713 eV/particle
fundamental state of matter
agregatno stanjeSolid
gaseous state of matter
Boiling Point
3.200,15 K
Melting Point
1.768,15 K
critical pressure
Kritična temperatura
Trojna tačka
appearance
boja
Gray
appearancehard lustrous gray metal
Indeks prelamanja
thermodynamic material property
Thermal Conductivity
thermal expansion
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
Specifična električna provodljivost
17 MS/m
electrical resistivity
0,00000006000000000002 m Ω
Superprovodljivost
Magnetizam
typeferromagnetic
magnetic susceptibility (Mass)
magnetic susceptibility (Molar)
magnetic susceptibility (Volume)
magnetic ordering
Kirijeva tačka
1.394 K
Néel temperature
struktura
Crystal StructureSimple Hexagonal (HEX)
lattice constant
2,51 Å
Lattice Anglesπ/2, π/2, 2 π/3
mechanical property
Tvrdoća
5 MPa
bulk modulus
180 GPa
shear modulus
75 GPa
Young's modulus
209 GPa
Poisson's ratio
0,31
Brzina zvuka
4.720 m/s
klasifikacija
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
Kvantni brojevi4F9/2
space group194 (P63/mmc)

Isotopes of Cobalt

Stable Isotopes1
Unstable Isotopes31
Natural Isotopes1

47Co

Maseni broj47
broj neutrona20
relative atomic mass
47,011401 ± 0,000644 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
spin7/2
nuclear quadrupole moment
datum otkrića
parity-

decay modeintensity
p (proton emission)

48Co

Maseni broj48
broj neutrona21
relative atomic mass
48,001857 ± 0,000537 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
spin6
nuclear quadrupole moment
datum otkrića
parity+

decay modeintensity
p (proton emission)

49Co

Maseni broj49
broj neutrona22
relative atomic mass
48,989501 ± 0,000537 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
spin7/2
nuclear quadrupole moment
datum otkrića
parity-

decay modeintensity
p (proton emission)

50Co

Maseni broj50
broj neutrona23
relative atomic mass
49,981117 ± 0,000135 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
38,8 ± 0,2 ms
spin6
nuclear quadrupole moment
datum otkrića1987
parity+

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

51Co

Maseni broj51
broj neutrona24
relative atomic mass
50,970647 ± 0,000052 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
68,8 ± 1,9 ms
spin7/2
nuclear quadrupole moment
datum otkrića1987
parity-

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

52Co

Maseni broj52
broj neutrona25
relative atomic mass
51,963130224 ± 0,000005669 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
111,7 ± 2,1 ms
spin6
nuclear quadrupole moment
datum otkrića1987
parity+

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

53Co

Maseni broj53
broj neutrona26
relative atomic mass
52,954203278 ± 0,000001854 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
244,6 ± 2,8 ms
spin7/2
nuclear quadrupole moment
datum otkrića1970
parity-

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

54Co

Maseni broj54
broj neutrona27
relative atomic mass
53,948459075 ± 0,00000038 Da
g-factor
0
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
193,27 ± 0,06 ms
spin0
nuclear quadrupole moment
0
datum otkrića1952
parity+

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

55Co

Maseni broj55
broj neutrona28
relative atomic mass
54,941996416 ± 0,000000434 Da
g-factor
1,3777142857143 ± 0,00085714285714286
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
17,53 ± 0,03 h
spin7/2
nuclear quadrupole moment
datum otkrića1938
parity-

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

56Co

Maseni broj56
broj neutrona29
relative atomic mass
55,939838032 ± 0,00000051 Da
g-factor
0,9625 ± 0,0025
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
77,236 ± 0,026 d
spin4
nuclear quadrupole moment
0,25 ± 0,09
datum otkrića1941
parity+

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

57Co

Maseni broj57
broj neutrona30
relative atomic mass
56,936289819 ± 0,000000553 Da
g-factor
1,3485714285714 ± 0,0028571428571429
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
271,811 ± 0,032 d
spin7/2
nuclear quadrupole moment
0,54 ± 0,1
datum otkrića1941
parity-

decay modeintensity
ϵ (electron capture)100%

58Co

Maseni broj58
broj neutrona31
relative atomic mass
57,935751292 ± 0,000001237 Da
g-factor
2,022 ± 0,004
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
70,844 ± 0,02 d
spin2
nuclear quadrupole moment
0,23 ± 0,03
datum otkrića1941
parity+

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

59Co

Maseni broj59
broj neutrona32
relative atomic mass
58,933193524 ± 0,000000426 Da
g-factor
natural abundance
100
Radioaktivnoststable isotope
Vrijeme poluraspadaNot Radioactive ☢️
spin7/2
nuclear quadrupole moment
0,42 ± 0,03
datum otkrića1923
parity-

60Co

Maseni broj60
broj neutrona33
relative atomic mass
59,933815536 ± 0,000000433 Da
g-factor
0,7598 ± 0,0016
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
5,2714 ± 0,0006 y
spin5
nuclear quadrupole moment
0,46 ± 0,06
datum otkrića1941
parity+

decay modeintensity
β (β decay)100%

61Co

Maseni broj61
broj neutrona34
relative atomic mass
60,932476031 ± 0,000000901 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
1,649 ± 0,005 h
spin7/2
nuclear quadrupole moment
datum otkrića1947
parity-

decay modeintensity
β (β decay)100%

62Co

Maseni broj62
broj neutrona35
relative atomic mass
61,934058198 ± 0,00001994 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
1,54 ± 0,1 m
spin2
nuclear quadrupole moment
datum otkrića1949
parity

decay modeintensity
β (β decay)100%

63Co

Maseni broj63
broj neutrona36
relative atomic mass
62,93359963 ± 0,000019941 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
26,9 ± 0,4 s
spin7/2
nuclear quadrupole moment
datum otkrića1960
parity-

decay modeintensity
β (β decay)100%

64Co

Maseni broj64
broj neutrona37
relative atomic mass
63,935810176 ± 0,000021476 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
300 ± 30 ms
spin1
nuclear quadrupole moment
datum otkrića1969
parity+

decay modeintensity
β (β decay)100%

65Co

Maseni broj65
broj neutrona38
relative atomic mass
64,936462071 ± 0,000002235 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
1,16 ± 0,03 s
spin7/2
nuclear quadrupole moment
datum otkrića1978
parity

decay modeintensity
β (β decay)100%

66Co

Maseni broj66
broj neutrona39
relative atomic mass
65,939442943 ± 0,000015 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
194 ± 17 ms
spin1
nuclear quadrupole moment
datum otkrića1985
parity+

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

67Co

Maseni broj67
broj neutrona40
relative atomic mass
66,940609625 ± 0,000006917 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
329 ± 28 ms
spin7/2
nuclear quadrupole moment
datum otkrića1985
parity-

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

68Co

Maseni broj68
broj neutrona41
relative atomic mass
67,944559401 ± 0,000004142 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
200 ± 20 ms
spin7
nuclear quadrupole moment
datum otkrića1985
parity-

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

69Co

Maseni broj69
broj neutrona42
relative atomic mass
68,945909 ± 0,000092 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
180 ± 20 ms
spin7/2
nuclear quadrupole moment
datum otkrića1985
parity-

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

70Co

Maseni broj70
broj neutrona43
relative atomic mass
69,9500534 ± 0,0000118 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
508 ± 7 ms
spin1
nuclear quadrupole moment
datum otkrića1998
parity+

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

71Co

Maseni broj71
broj neutrona44
relative atomic mass
70,952366923 ± 0,00049923 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
80 ± 3 ms
spin7/2
nuclear quadrupole moment
datum otkrića1992
parity-

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

72Co

Maseni broj72
broj neutrona45
relative atomic mass
71,956736 ± 0,000322 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
51,5 ± 0,3 ms
spin6
nuclear quadrupole moment
datum otkrića1992
parity-

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

73Co

Maseni broj73
broj neutrona46
relative atomic mass
72,959238 ± 0,000322 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
42 ± 0,8 ms
spin7/2
nuclear quadrupole moment
datum otkrića1995
parity-

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

74Co

Maseni broj74
broj neutrona47
relative atomic mass
73,963993 ± 0,000429 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
31,3 ± 1,3 ms
spin7
nuclear quadrupole moment
datum otkrića1995
parity-

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

75Co

Maseni broj75
broj neutrona48
relative atomic mass
74,967192 ± 0,000429 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
26,5 ± 1,2 ms
spin7/2
nuclear quadrupole moment
datum otkrića1995
parity-

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

76Co

Maseni broj76
broj neutrona49
relative atomic mass
75,972453 ± 0,000537 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
23 ± 6 ms
spin8
nuclear quadrupole moment
datum otkrića2010
parity-

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

77Co

Maseni broj77
broj neutrona50
relative atomic mass
76,976479 ± 0,000644 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
15 ± 6 ms
spin7/2
nuclear quadrupole moment
datum otkrića2014
parity-

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

78Co

Maseni broj78
broj neutrona51
relative atomic mass
77,983553 ± 0,000751 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
spin
nuclear quadrupole moment
datum otkrića2017
parity

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

historija

otkrivač ili izumiteljGeorge Brandt
mjesto otkrićaSweden
datum otkrića1739
EtimologijaGerman: kobold (goblin).
pronunciationKO-bolt (engleski)

izvor

Abundance
Abundance in Earth's crust
natural abundance (okean)
0,00002 mg/L
natural abundance (ljudsko tijelo)
0,000002 %
natural abundance (Meteoroidi)
0,059 %
natural abundance (Sunce)
0,0004 %
Abundance in Universe
0,0003 %

Nuclear Screening Constants

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