Оҳан

Оҳан (Fe)

chemical element with symbol Fe and atomic number 26
Atomic Number26
Atomic Weight55.845
Адади массавӣ56
Group8
Period4
Blockd
proton26 p+
neutron30 n0
electron26 e-
Animated Bohr model of Fe (Оҳан)

Хусусияти Физикӣ

Atomic Radius
140 pm
molar volume
covalent radius
116 pm
Metallic Radius
117 pm
ionic radius
63 pm
Crystal Radius
77 pm
Van der Waals radius
204 pm
зичӣ
7,87 g/cm³
Atomic Radii Of The Elements: Оҳан0102030405060708090100110120130140150160170180190200210pmAtomic RadiusCovalent RadiusMetallic RadiusVan der Waals radius

Chemical Property

энергия
proton affinity
754 kJ/mol
electron affinity
ionization energy
7,9024678 eV/particle
ionization energy of Fe (Оҳан)
enthalpy of vaporization
340 kJ/mol
гармои гудозиш
13,8 kJ/mol
standard enthalpy of formation
415,5 kJ/mol
electron
Абри электронӣ2, 8, 14, 2
Bohr model: Fe (Оҳан)
valence electron2
Lewis structure: Fe (Оҳан)
electron configuration[Ar] 3d6 4s2
1s2 2s2 2p6 3s2 3p6 3d6 4s2
Enhanced Bohr model of Fe (Оҳан)
Orbital Diagram of Fe (Оҳан)
oxidation number-4, -2, -1, 0, 1, 2, 3, 4, 5, 6, 7
electronegativity
1.83
Electrophilicity Index
1,045904228706801 eV/particle
fundamental state of matter
phase of matterSolid
gaseous state of matter
Boiling Point
3 134,15 K
Melting Point
1 811,15 K
critical pressure
critical temperature
9 340,15 K
triple point
appearance
Ранг
Gray
appearancelustrous metallic with a grayish tinge
refractive index
thermodynamic material property
Thermal Conductivity
80,4 W/(m K)
thermal expansion
0,0000118 1/K
molar heat capacity
Specific Heat Capacity
heat capacity ratio
electrical properties
навъConductor
electrical conductivity
10 MS/m
electrical resistivity
0,00000009700000000001 m Ω
superconductivity
magnetism
навъferromagnetic
magnetic susceptibility (Mass)
magnetic susceptibility (Molar)
magnetic susceptibility (Volume)
magnetic ordering
Curie temperature
1 043 K
Néel temperature
сохт
Crystal StructureBody Centered Cubic (BCC)
lattice constant
2,87 Å
Lattice Anglesπ/2, π/2, π/2
mechanical property
hardness
4 MPa
bulk modulus
170 GPa
shear modulus
82 GPa
Young's modulus
211 GPa
Poisson's ratio
0,29
speed of sound
4 910 m/s
classification
CategoryTransition metals, Transition metals
CAS GroupVIIIA
IUPAC GroupVIII
Glawe Number71
Mendeleev Number59
Pettifor Number61
Geochemical Classmajor
Goldschmidt classificationsiderophile

other

Gas Basicity
731,1 kJ/mol
polarizability
62 ± 4 a₀
C6 Dispersion Coefficient
482 a₀
allotrope
Neutron cross section
2,56
Neutron Mass Absorption
0,0015
ададҳои квантӣ5D4
space group229 (Im_3m)

Isotopes of Iron

Stable Isotopes3
Unstable Isotopes29
Natural Isotopes4
Isotopic Composition5691.75%5691.75%545.85%545.85%572.12%572.12%580.28%580.28%

45Fe

Адади массавӣ45
neutron number19
relative atomic mass
45,015467 ± 0,000304 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
2,5 ± 0,2 ms
spin3/2
nuclear quadrupole moment
таърихи кашф1996
parity+

decay modeintensity
2p (2-proton emission)70%
β+ (β+ decay; β+ = ϵ + e+)30%
β+ p (β+-delayed proton emission)18.9%
2p (2-proton emission)7.8%

46Fe

Адади массавӣ46
neutron number20
relative atomic mass
46,001299 ± 0,000322 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
13 ± 2 ms
spin0
nuclear quadrupole moment
0
таърихи кашф1992
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%
β+ p (β+-delayed proton emission)78.7%
2p (2-proton emission)

47Fe

Адади массавӣ47
neutron number21
relative atomic mass
46,992346 ± 0,000537 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
21,9 ± 0,2 ms
spin7/2
nuclear quadrupole moment
таърихи кашф1992
parity-

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%
β+ p (β+-delayed proton emission)88.4%

48Fe

Адади массавӣ48
neutron number22
relative atomic mass
47,980667 ± 0,000099 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
45,3 ± 0,6 ms
spin0
nuclear quadrupole moment
0
таърихи кашф1987
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%
β+ p (β+-delayed proton emission)15.3%

49Fe

Адади массавӣ49
neutron number23
relative atomic mass
48,973429 ± 0,000026 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
64,7 ± 0,3 ms
spin7/2
nuclear quadrupole moment
таърихи кашф1970
parity-

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%
β+ p (β+-delayed proton emission)56.7%

50Fe

Адади массавӣ50
neutron number24
relative atomic mass
49,962988 ± 0,000009 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
152 ± 0,6 ms
spin0
nuclear quadrupole moment
0
таърихи кашф1977
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%
β+ p (β+-delayed proton emission)0%

51Fe

Адади массавӣ51
neutron number25
relative atomic mass
50,956855137 ± 0,000001501 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
305,4 ± 2,3 ms
spin5/2
nuclear quadrupole moment
таърихи кашф1972
parity-

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

52Fe

Адади массавӣ52
neutron number26
relative atomic mass
51,948113364 ± 0,000000192 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
8,275 ± 0,008 h
spin0
nuclear quadrupole moment
0
таърихи кашф1948
parity+

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

53Fe

Адади массавӣ53
neutron number27
relative atomic mass
52,945305629 ± 0,000001792 Da
g-factor
-0,18571428571429 ± 0,0028571428571429
natural abundance
radioactivity☢️ radioactive element
half-life
8,51 ± 0,02 m
spin7/2
nuclear quadrupole moment
таърихи кашф1938
parity-

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

54Fe

Адади массавӣ54
neutron number28
relative atomic mass
53,939608189 ± 0,000000368 Da
g-factor
0
natural abundance
5,845 ± 0,105
radioactivity☢️ radioactive element
half-life
spin0
nuclear quadrupole moment
0
таърихи кашф1923
parity+

decay modeintensity
+ (double β+ decay)

55Fe

Адади массавӣ55
neutron number29
relative atomic mass
54,938291158 ± 0,00000033 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
2,7562 ± 0,0004 y
spin3/2
nuclear quadrupole moment
таърихи кашф1939
parity-

decay modeintensity
ϵ (electron capture)100%

56Fe

Адади массавӣ56
neutron number30
relative atomic mass
55,934935537 ± 0,000000287 Da
g-factor
0
natural abundance
91,754 ± 0,106
radioactivitystable isotope
half-lifeNot Radioactive ☢️
spin0
nuclear quadrupole moment
0
таърихи кашф1923
parity+

57Fe

Адади массавӣ57
neutron number31
relative atomic mass
56,93539195 ± 0,000000287 Da
g-factor
natural abundance
2,119 ± 0,029
radioactivitystable isotope
half-lifeNot Radioactive ☢️
spin1/2
nuclear quadrupole moment
0
таърихи кашф1935
parity-

58Fe

Адади массавӣ58
neutron number32
relative atomic mass
57,933273575 ± 0,000000339 Da
g-factor
0
natural abundance
0,282 ± 0,012
radioactivitystable isotope
half-lifeNot Radioactive ☢️
spin0
nuclear quadrupole moment
0
таърихи кашф1935
parity+

59Fe

Адади массавӣ59
neutron number33
relative atomic mass
58,934873492 ± 0,000000354 Da
g-factor
-0,22386666666667 ± 0,00026666666666667
natural abundance
radioactivity☢️ radioactive element
half-life
44,5 ± 0,012 d
spin3/2
nuclear quadrupole moment
таърихи кашф1938
parity-

decay modeintensity
β (β decay)100%

60Fe

Адади массавӣ60
neutron number34
relative atomic mass
59,934070249 ± 0,000003656 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
2,62 ± 0,04 My
spin0
nuclear quadrupole moment
0
таърихи кашф1957
parity+

decay modeintensity
β (β decay)100%

61Fe

Адади массавӣ61
neutron number35
relative atomic mass
60,936746241 ± 0,0000028 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
5,98 ± 0,06 m
spin3/2
nuclear quadrupole moment
таърихи кашф1957
parity-

decay modeintensity
β (β decay)100%

62Fe

Адади массавӣ62
neutron number36
relative atomic mass
61,936791809 ± 0,000003 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
68 ± 2 s
spin0
nuclear quadrupole moment
0
таърихи кашф1975
parity+

decay modeintensity
β (β decay)100%

63Fe

Адади массавӣ63
neutron number37
relative atomic mass
62,940272698 ± 0,000004618 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
6,1 ± 0,6 s
spin5/2
nuclear quadrupole moment
таърихи кашф1980
parity-

decay modeintensity
β (β decay)100%

64Fe

Адади массавӣ64
neutron number38
relative atomic mass
63,940987761 ± 0,000005386 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
2 ± 0,2 s
spin0
nuclear quadrupole moment
0
таърихи кашф1980
parity+

decay modeintensity
β (β decay)100%

65Fe

Адади массавӣ65
neutron number39
relative atomic mass
64,945015323 ± 0,000005487 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
805 ± 10 ms
spin1/2
nuclear quadrupole moment
0
таърихи кашф1980
parity-

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

66Fe

Адади массавӣ66
neutron number40
relative atomic mass
65,946249958 ± 0,0000044 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
467 ± 29 ms
spin0
nuclear quadrupole moment
0
таърихи кашф1985
parity+

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

67Fe

Адади массавӣ67
neutron number41
relative atomic mass
66,95093 ± 0,0000041 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
394 ± 9 ms
spin1/2
nuclear quadrupole moment
0
таърихи кашф1985
parity-

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

68Fe

Адади массавӣ68
neutron number42
relative atomic mass
67,952875 ± 0,000207 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
188 ± 4 ms
spin0
nuclear quadrupole moment
0
таърихи кашф1985
parity+

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)0%

69Fe

Адади массавӣ69
neutron number43
relative atomic mass
68,957918 ± 0,000215 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
162 ± 7 ms
spin1/2
nuclear quadrupole moment
0
таърихи кашф1992
parity-

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

70Fe

Адади массавӣ70
neutron number44
relative atomic mass
69,960397 ± 0,000322 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
61,4 ± 0,7 ms
spin0
nuclear quadrupole moment
0
таърихи кашф1997
parity+

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

71Fe

Адади массавӣ71
neutron number45
relative atomic mass
70,965722 ± 0,000429 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
34,3 ± 2,6 ms
spin7/2
nuclear quadrupole moment
таърихи кашф1997
parity+

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

72Fe

Адади массавӣ72
neutron number46
relative atomic mass
71,968599 ± 0,000537 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
17 ± 1 ms
spin0
nuclear quadrupole moment
0
таърихи кашф1997
parity+

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

73Fe

Адади массавӣ73
neutron number47
relative atomic mass
72,974246 ± 0,000537 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
12,9 ± 1,6 ms
spin7/2
nuclear quadrupole moment
таърихи кашф2010
parity+

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

74Fe

Адади массавӣ74
neutron number48
relative atomic mass
73,977821 ± 0,000537 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
5 ± 5 ms
spin0
nuclear quadrupole moment
0
таърихи кашф2010
parity+

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

75Fe

Адади массавӣ75
neutron number49
relative atomic mass
74,984219 ± 0,000644 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
spin9/2
nuclear quadrupole moment
таърихи кашф2013
parity+

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

76Fe

Адади массавӣ76
neutron number50
relative atomic mass
75,988631 ± 0,000644 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
spin0
nuclear quadrupole moment
0
таърихи кашф2017
parity+

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

таърих

кошифKnown to the ancients.
макони кашф
таърихи кашф
РешашиносӣAnglo-Saxon: iron; symbol from Latin: ferrum (iron).
pronunciationEYE-ern (Англисӣ)

source

Abundance
Abundance in Earth's crust
56 300 mg/kg
natural abundance (Уқёнус)
0,002 mg/L
natural abundance (human body)
0,006 %
natural abundance (meteoroid)
22 %
natural abundance (Офтоб)
0,1 %
Abundance in Universe
0,11 %

Nuclear Screening Constants

1s0.619
2p3.9112
2s7.401
3d14.8202
3p13.2221
3s12.3239
4s20.566