Kobalt (Co)

hemijski element sa simbolom Co i atomskim brojem 27

Atomic Number	27
Atomic Weight	58.933194
Maseni broj	59

Group	9
Period	4
Block	d

Proton	27 p⁺
Neutron	32 n⁰
Elektron	27 e^-

Animated Bohrov model atoma of Co (Kobalt)

Physical Property

Atomski Radijus	135 pm 233 pm
Molarni volumen	6,7 cm³/mol
covalent radius	111 pm 103 pm 96 pm 137 pm 138 pm
Metallic Radius	116 pm 125 pm
Ionski radijus	58 pm 67 pm 65 pm 74,5 pm 90 pm 54,5 pm 61 pm 40 pm 53 pm
Crystal Radius	72 pm 81 pm 79 pm 88,5 pm 104 pm 68,5 pm 75 pm 54 pm 67 pm
Van der Waalsov radijus	200 pm 200 pm 223 pm 287,2 pm
gustoća	8,86 g/cm³ 7.750 kg/m³

Chemical Property

{ERROR}

energija

proton affinity	742,7 kJ/mol
electron affinity	0,66225646 eV/particle
ionization energy	7,88101 eV/particle 17,0844 eV/particle 33,5 eV/particle 51,27 eV/particle 79,5 eV/particle 102 eV/particle 129 eV/particle 157,8 eV/particle 186,14 eV/particle 275,4 eV/particle 305,32 eV/particle 336,15 eV/particle 378,55 eV/particle 410 eV/particle 441,1 eV/particle 511,96 eV/particle 546,588 eV/particle 1.397,2 eV/particle 1.504,5 eV/particle 1.606 eV/particle 1.724 eV/particle 1.844 eV/particle 1.960,83 eV/particle 2.119,4 eV/particle 2.218,876 eV/particle 9.544,183 eV/particle 10.012,122 eV/particle

Toplota isparavanja	389,1 kJ/mol
toplota topljenja	15,48 kJ/mol
standard enthalpy of formation	426,7 kJ/mol
Elektron

electron shell	2, 8, 15, 2

Valentni elektron	2 ⓘ

electron configuration	[Ar] 3d⁷ 4s²ⓘ 1s² 2s² 2p⁶ 3s² 3p⁶ 3d⁷ 4s²

oksidacijsko stanje	-3, -1, 0, 1, 2, 3, 4, 5
Elektronegativnost	10,86 eV/particle 0.1432363 1.88
Electrophilicity Index	1,2638504937543713 eV/particle
fundamental state of matter

agregatno stanje
gaseous state of matter
Boiling Point	3.200,15 K
Melting Point	1.768,15 K
critical pressure
Kritična temperatura
Trojna tačka
appearance
boja	Black #ff1493 #f090a0 #f090a0
appearance	hard lustrous gray metal
Indeks prelamanja
thermodynamic material property
Thermal Conductivity	100 W/(m K)
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
type	Conductor
Specifična električna provodljivost	17 MS/m
electrical resistivity	0,00000006000000000002 Ω*m
Superprovodljivost
Magnetizam
type	ferromagnetic
magnetic susceptibility (Mass)
magnetic susceptibility (Molar)
magnetic susceptibility (Volume)
magnetic ordering
Kirijeva tačka	1.394 K
Néel temperature
struktura
Crystal Structure	{ERROR}
lattice constant	2,51 Å
Lattice Angles	π/2, π/2, 2 π/3
mechanical property
Tvrdoća	700 MPa 5 MPa 1.043 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
Category	Actinides, Transition metals
CAS Group	VIIIA
IUPAC Group	VIII
Glawe Number	70
Mendeleev Number	63
Pettifor Number	64
Geochemical Class	first series transition metal
Goldschmidt classification	siderophile

other

Gas Basicity	719,8 kJ/mol
polarizability	55 ± 4 a₀
C6 Dispersion Coefficient	408 a₀ 461 a₀
allotrope
Neutron cross section	37,2
Neutron Mass Absorption	0,021
Kvantni brojevi	4F9/2
space group	194 (P63/mmc)

Isotopes of Cobalt

Stable Isotopes	1
Unstable Isotopes	31
Natural Isotopes	1

⁴⁷Co

Maseni broj	47
broj neutrona	20
Relative Atomic Mass	47,011401 ± 0,000644 Da
g-factor
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada
spin	7/2
nuclear quadrupole moment
datum otkrića
parity	-

decay mode	intensity
p (proton emission)

⁴⁸Co

Maseni broj	48
broj neutrona	21
Relative Atomic Mass	48,001857 ± 0,000537 Da
g-factor
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada
spin	6
nuclear quadrupole moment
datum otkrića
parity	+

decay mode	intensity
p (proton emission)

⁴⁹Co

Maseni broj	49
broj neutrona	22
Relative Atomic Mass	48,989501 ± 0,000537 Da
g-factor
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada
spin	7/2
nuclear quadrupole moment
datum otkrića
parity	-

decay mode	intensity
p (proton emission)

⁵⁰Co

Maseni broj	50
broj neutrona	23
Relative Atomic Mass	49,981117 ± 0,000135 Da
g-factor
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	38,8 ± 0,2 ms
spin	6
nuclear quadrupole moment
datum otkrića	1987
parity	+

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

⁵¹Co

Maseni broj	51
broj neutrona	24
Relative Atomic Mass	50,970647 ± 0,000052 Da
g-factor
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	68,8 ± 1,9 ms
spin	7/2
nuclear quadrupole moment
datum otkrića	1987
parity	-

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

⁵²Co

Maseni broj	52
broj neutrona	25
Relative Atomic Mass	51,963130224 ± 0,000005669 Da
g-factor
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	111,7 ± 2,1 ms
spin	6
nuclear quadrupole moment
datum otkrića	1987
parity	+

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

⁵³Co

Maseni broj	53
broj neutrona	26
Relative Atomic Mass	52,954203278 ± 0,000001854 Da
g-factor
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	244,6 ± 2,8 ms
spin	7/2
nuclear quadrupole moment
datum otkrića	1970
parity	-

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

⁵⁴Co

Maseni broj	54
broj neutrona	27
Relative Atomic Mass	53,948459075 ± 0,00000038 Da
g-factor	0
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	193,27 ± 0,06 ms
spin	0
nuclear quadrupole moment	0
datum otkrića	1952
parity	+

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

⁵⁵Co

Maseni broj	55
broj neutrona	28
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
spin	7/2
nuclear quadrupole moment
datum otkrića	1938
parity	-

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

⁵⁶Co

Maseni broj	56
broj neutrona	29
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
spin	4
nuclear quadrupole moment	0,25 ± 0,09
datum otkrića	1941
parity	+

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

⁵⁷Co

Maseni broj	57
broj neutrona	30
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
spin	7/2
nuclear quadrupole moment	0,54 ± 0,1
datum otkrića	1941
parity	-

decay mode	intensity
ϵ (electron capture)	100%

⁵⁸Co

Maseni broj	58
broj neutrona	31
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
spin	2
nuclear quadrupole moment	0,23 ± 0,03
datum otkrića	1941
parity	+

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

⁵⁹Co

Maseni broj	59
broj neutrona	32
Relative Atomic Mass	58,933193524 ± 0,000000426 Da
g-factor
natural abundance	100
Radioaktivnost	stable isotope
Vrijeme poluraspada	Not Radioactive ☢️
spin	7/2
nuclear quadrupole moment	0,42 ± 0,03
datum otkrića	1923
parity	-

⁶⁰Co

Maseni broj	60
broj neutrona	33
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
spin	5
nuclear quadrupole moment	0,46 ± 0,06
datum otkrića	1941
parity	+

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

⁶¹Co

Maseni broj	61
broj neutrona	34
Relative Atomic Mass	60,932476031 ± 0,000000901 Da
g-factor
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	1,649 ± 0,005 h
spin	7/2
nuclear quadrupole moment
datum otkrića	1947
parity	-

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

⁶²Co

Maseni broj	62
broj neutrona	35
Relative Atomic Mass	61,934058198 ± 0,00001994 Da
g-factor
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	1,54 ± 0,1 m
spin	2
nuclear quadrupole moment
datum otkrića	1949
parity

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

⁶³Co

Maseni broj	63
broj neutrona	36
Relative Atomic Mass	62,93359963 ± 0,000019941 Da
g-factor
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	26,9 ± 0,4 s
spin	7/2
nuclear quadrupole moment
datum otkrića	1960
parity	-

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

⁶⁴Co

Maseni broj	64
broj neutrona	37
Relative Atomic Mass	63,935810176 ± 0,000021476 Da
g-factor
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	300 ± 30 ms
spin	1
nuclear quadrupole moment
datum otkrića	1969
parity	+

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

⁶⁵Co

Maseni broj	65
broj neutrona	38
Relative Atomic Mass	64,936462071 ± 0,000002235 Da
g-factor
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	1,16 ± 0,03 s
spin	7/2
nuclear quadrupole moment
datum otkrića	1978
parity

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

⁶⁶Co

Maseni broj	66
broj neutrona	39
Relative Atomic Mass	65,939442943 ± 0,000015 Da
g-factor
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	194 ± 17 ms
spin	1
nuclear quadrupole moment
datum otkrića	1985
parity	+

decay mode	intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)

⁶⁷Co

Maseni broj	67
broj neutrona	40
Relative Atomic Mass	66,940609625 ± 0,000006917 Da
g-factor
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	329 ± 28 ms
spin	7/2
nuclear quadrupole moment
datum otkrića	1985
parity	-

decay mode	intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)

⁶⁸Co

Maseni broj	68
broj neutrona	41
Relative Atomic Mass	67,944559401 ± 0,000004142 Da
g-factor
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	200 ± 20 ms
spin	7
nuclear quadrupole moment
datum otkrića	1985
parity	-

decay mode	intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)

⁶⁹Co

Maseni broj	69
broj neutrona	42
Relative Atomic Mass	68,945909 ± 0,000092 Da
g-factor
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	180 ± 20 ms
spin	7/2
nuclear quadrupole moment
datum otkrića	1985
parity	-

decay mode	intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)

⁷⁰Co

Maseni broj	70
broj neutrona	43
Relative Atomic Mass	69,9500534 ± 0,0000118 Da
g-factor
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	508 ± 7 ms
spin	1
nuclear quadrupole moment
datum otkrića	1998
parity	+

decay mode	intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)
2n (2-neutron emission)

⁷¹Co

Maseni broj	71
broj neutrona	44
Relative Atomic Mass	70,952366923 ± 0,00049923 Da
g-factor
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	80 ± 3 ms
spin	7/2
nuclear quadrupole moment
datum otkrića	1992
parity	-

decay mode	intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	3%

⁷²Co

Maseni broj	72
broj neutrona	45
Relative Atomic Mass	71,956736 ± 0,000322 Da
g-factor
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	51,5 ± 0,3 ms
spin	6
nuclear quadrupole moment
datum otkrića	1992
parity	-

decay mode	intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	4%
2n (2-neutron emission)

⁷³Co

Maseni broj	73
broj neutrona	46
Relative Atomic Mass	72,959238 ± 0,000322 Da
g-factor
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	42 ± 0,8 ms
spin	7/2
nuclear quadrupole moment
datum otkrića	1995
parity	-

decay mode	intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	6%
2n (2-neutron emission)

⁷⁴Co

Maseni broj	74
broj neutrona	47
Relative Atomic Mass	73,963993 ± 0,000429 Da
g-factor
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	31,3 ± 1,3 ms
spin	7
nuclear quadrupole moment
datum otkrića	1995
parity	-

decay mode	intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	18%
2n (2-neutron emission)

⁷⁵Co

Maseni broj	75
broj neutrona	48
Relative Atomic Mass	74,967192 ± 0,000429 Da
g-factor
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	26,5 ± 1,2 ms
spin	7/2
nuclear quadrupole moment
datum otkrića	1995
parity	-

decay mode	intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	16%
2n (2-neutron emission)

⁷⁶Co

Maseni broj	76
broj neutrona	49
Relative Atomic Mass	75,972453 ± 0,000537 Da
g-factor
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	23 ± 6 ms
spin	8
nuclear quadrupole moment
datum otkrića	2010
parity	-

decay mode	intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)
2n (2-neutron emission)

⁷⁷Co

Maseni broj	77
broj neutrona	50
Relative Atomic Mass	76,976479 ± 0,000644 Da
g-factor
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	15 ± 6 ms
spin	7/2
nuclear quadrupole moment
datum otkrića	2014
parity	-

decay mode	intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)
2n (2-neutron emission)
3n (3-neutron emission)

⁷⁸Co

Maseni broj	78
broj neutrona	51
Relative Atomic Mass	77,983553 ± 0,000751 Da
g-factor
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada
spin
nuclear quadrupole moment
datum otkrića	2017
parity

decay mode	intensity
β⁻ (β⁻ decay)

historija

otkrivač ili izumitelj	George Brandt
mjesto otkrića	Sweden
datum otkrića	1739
Etimologija	German: kobold (goblin).
pronunciation	KO-bolt (engleski)

izvor

Abundance
Abundance in Earth's crust	25 mg/kg
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

1	s	0.6332
2	p	3.9076
2	s	7.595
3	d	15.1446
3	p	13.5654
3	s	12.6777
4	s	21.4236

Kobalt on ChemicalAid

Kobalt (Co)

Physical Property

Chemical Property

other

Isotopes of Cobalt

47Co

48Co

49Co

50Co

51Co

52Co

53Co

54Co

55Co

56Co

57Co

58Co

59Co

60Co

61Co

62Co

63Co

64Co

65Co

66Co

67Co

68Co

69Co

70Co

71Co

72Co

73Co

74Co

75Co

76Co

77Co

78Co

historija

izvor

Nuclear Screening Constants

⁴⁷Co

⁴⁸Co

⁴⁹Co

⁵⁰Co

⁵¹Co

⁵²Co

⁵³Co

⁵⁴Co

⁵⁵Co

⁵⁶Co

⁵⁷Co

⁵⁸Co

⁵⁹Co

⁶⁰Co

⁶¹Co

⁶²Co

⁶³Co

⁶⁴Co

⁶⁵Co

⁶⁶Co

⁶⁷Co

⁶⁸Co

⁶⁹Co

⁷⁰Co

⁷¹Co

⁷²Co

⁷³Co

⁷⁴Co

⁷⁵Co

⁷⁶Co

⁷⁷Co

⁷⁸Co