Besi

Besi (Fe)

chemical element with symbol Fe and atomic number 26
Atomic Number26
Atomic Weight55.845
Nombor jisim56
Group8
Period4
Blockd
proton26 p+
neutron30 n0
Elektron26 e-
Animated Model Bohr of Fe (Besi)

Sifat Fizikal

Jejari Atom
140 pm
molar volume
Jejari kovalen
116 pm
Metallic Radius
117 pm
ionic radius
63 pm
Crystal Radius
77 pm
Jejari van der Waals
204 pm
ketumpatan
7.87 g/cm³
Atomic Radii Of The Elements: Besi0102030405060708090100110120130140150160170180190200210pmJejari AtomJejari KovalenMetallic RadiusJejari van der Waals

Sifat Kimia

tenaga
proton affinity
754 kJ/mol
Pertalian elektron
ionization energy
7.9024678 eV/particle
ionization energy of Fe (Besi)
Entalpi pengewapan
340 kJ/mol
entalpi pelakuran
13.8 kJ/mol
standard enthalpy of formation
415.5 kJ/mol
Elektron
Petala elektron2, 8, 14, 2
Model Bohr: Fe (Besi)
Elektron valens2
Teori ion Lewis: Fe (Besi)
tatarajah elektron[Ar] 3d6 4s2
1s2 2s2 2p6 3s2 3p6 3d6 4s2
Enhanced Model Bohr of Fe (Besi)
Orbital Diagram of Fe (Besi)
Keadaan pengoksidaan-4, -2, -1, 0, 1, 2, 3, 4, 5, 6, 7
Keelektronegatifan
1.83
Electrophilicity Index
1.045904228706801 eV/particle
keadaan jirim asas
fasa jirimSolid
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
rupa
warna
Gray
rupalustrous metallic with a grayish tinge
indeks biasan
sifat bahan
Thermal Conductivity
80.4 W/(m K)
Pengembangan terma
0.0000118 1/K
molar heat capacity
Specific Heat Capacity
0.449 J/(g⋅K)
heat capacity ratio
electrical properties
typeConductor
Kekonduksian elektrik
10 MS/m
Kerintangan dan kekonduksian elektrik
0.00000009700000000001 m Ω
Kesuperkonduksian
kemagnetan
typeferromagnetic
magnetic susceptibility (Mass)
magnetic susceptibility (Molar)
magnetic susceptibility (Volume)
magnetic ordering
Suhu Curie
1,043 K
Néel temperature
struktur
Crystal StructureBody Centered Cubic (BCC)
lattice constant
2.87 Å
Lattice Anglesπ/2, π/2, π/2
mechanical property
hardness
4 MPa
Modulus pukal
170 GPa
shear modulus
82 GPa
Young's modulus
211 GPa
Nisbah Poisson
0.29
Kelajuan bunyi
4,910 m/s
pengelasan
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
Nombor kuantum5D4
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

Nombor jisim45
nombor neutron19
jisim atom relatif
45.015467 ± 0.000304 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
2.5 ± 0.2 ms
Spin3/2
nuclear quadrupole moment
tarikh penemuan1996
parity+

decay modeKeamatan (fizik)
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

Nombor jisim46
nombor neutron20
jisim atom relatif
46.001299 ± 0.000322 Da
g-factor
0
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
13 ± 2 ms
Spin0
nuclear quadrupole moment
0
tarikh penemuan1992
parity+

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

47Fe

Nombor jisim47
nombor neutron21
jisim atom relatif
46.992346 ± 0.000537 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
21.9 ± 0.2 ms
Spin7/2
nuclear quadrupole moment
tarikh penemuan1992
parity-

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

48Fe

Nombor jisim48
nombor neutron22
jisim atom relatif
47.980667 ± 0.000099 Da
g-factor
0
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
45.3 ± 0.6 ms
Spin0
nuclear quadrupole moment
0
tarikh penemuan1987
parity+

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

49Fe

Nombor jisim49
nombor neutron23
jisim atom relatif
48.973429 ± 0.000026 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
64.7 ± 0.3 ms
Spin7/2
nuclear quadrupole moment
tarikh penemuan1970
parity-

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

50Fe

Nombor jisim50
nombor neutron24
jisim atom relatif
49.962988 ± 0.000009 Da
g-factor
0
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
152 ± 0.6 ms
Spin0
nuclear quadrupole moment
0
tarikh penemuan1977
parity+

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

51Fe

Nombor jisim51
nombor neutron25
jisim atom relatif
50.956855137 ± 0.000001501 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
305.4 ± 2.3 ms
Spin5/2
nuclear quadrupole moment
tarikh penemuan1972
parity-

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

52Fe

Nombor jisim52
nombor neutron26
jisim atom relatif
51.948113364 ± 0.000000192 Da
g-factor
0
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
8.275 ± 0.008 h
Spin0
nuclear quadrupole moment
0
tarikh penemuan1948
parity+

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

53Fe

Nombor jisim53
nombor neutron27
jisim atom relatif
52.945305629 ± 0.000001792 Da
g-factor
-0.18571428571429 ± 0.0028571428571429
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
8.51 ± 0.02 m
Spin7/2
nuclear quadrupole moment
tarikh penemuan1938
parity-

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

54Fe

Nombor jisim54
nombor neutron28
jisim atom relatif
53.939608189 ± 0.000000368 Da
g-factor
0
natural abundance
5.845 ± 0.105
Reputan radioaktif☢️ radioactive element
setengah hayat
Spin0
nuclear quadrupole moment
0
tarikh penemuan1923
parity+

decay modeKeamatan (fizik)
+ (double β+ decay)

55Fe

Nombor jisim55
nombor neutron29
jisim atom relatif
54.938291158 ± 0.00000033 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
2.7562 ± 0.0004 y
Spin3/2
nuclear quadrupole moment
tarikh penemuan1939
parity-

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

56Fe

Nombor jisim56
nombor neutron30
jisim atom relatif
55.934935537 ± 0.000000287 Da
g-factor
0
natural abundance
91.754 ± 0.106
Reputan radioaktifIsotop stabil
setengah hayatNot Radioactive ☢️
Spin0
nuclear quadrupole moment
0
tarikh penemuan1923
parity+

57Fe

Nombor jisim57
nombor neutron31
jisim atom relatif
56.93539195 ± 0.000000287 Da
g-factor
natural abundance
2.119 ± 0.029
Reputan radioaktifIsotop stabil
setengah hayatNot Radioactive ☢️
Spin1/2
nuclear quadrupole moment
0
tarikh penemuan1935
parity-

58Fe

Nombor jisim58
nombor neutron32
jisim atom relatif
57.933273575 ± 0.000000339 Da
g-factor
0
natural abundance
0.282 ± 0.012
Reputan radioaktifIsotop stabil
setengah hayatNot Radioactive ☢️
Spin0
nuclear quadrupole moment
0
tarikh penemuan1935
parity+

59Fe

Nombor jisim59
nombor neutron33
jisim atom relatif
58.934873492 ± 0.000000354 Da
g-factor
-0.22386666666667 ± 0.00026666666666667
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
44.5 ± 0.012 d
Spin3/2
nuclear quadrupole moment
tarikh penemuan1938
parity-

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

60Fe

Nombor jisim60
nombor neutron34
jisim atom relatif
59.934070249 ± 0.000003656 Da
g-factor
0
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
2.62 ± 0.04 My
Spin0
nuclear quadrupole moment
0
tarikh penemuan1957
parity+

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

61Fe

Nombor jisim61
nombor neutron35
jisim atom relatif
60.936746241 ± 0.0000028 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
5.98 ± 0.06 m
Spin3/2
nuclear quadrupole moment
tarikh penemuan1957
parity-

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

62Fe

Nombor jisim62
nombor neutron36
jisim atom relatif
61.936791809 ± 0.000003 Da
g-factor
0
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
68 ± 2 s
Spin0
nuclear quadrupole moment
0
tarikh penemuan1975
parity+

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

63Fe

Nombor jisim63
nombor neutron37
jisim atom relatif
62.940272698 ± 0.000004618 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
6.1 ± 0.6 s
Spin5/2
nuclear quadrupole moment
tarikh penemuan1980
parity-

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

64Fe

Nombor jisim64
nombor neutron38
jisim atom relatif
63.940987761 ± 0.000005386 Da
g-factor
0
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
2 ± 0.2 s
Spin0
nuclear quadrupole moment
0
tarikh penemuan1980
parity+

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

65Fe

Nombor jisim65
nombor neutron39
jisim atom relatif
64.945015323 ± 0.000005487 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
805 ± 10 ms
Spin1/2
nuclear quadrupole moment
0
tarikh penemuan1980
parity-

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

66Fe

Nombor jisim66
nombor neutron40
jisim atom relatif
65.946249958 ± 0.0000044 Da
g-factor
0
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
467 ± 29 ms
Spin0
nuclear quadrupole moment
0
tarikh penemuan1985
parity+

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

67Fe

Nombor jisim67
nombor neutron41
jisim atom relatif
66.95093 ± 0.0000041 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
394 ± 9 ms
Spin1/2
nuclear quadrupole moment
0
tarikh penemuan1985
parity-

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

68Fe

Nombor jisim68
nombor neutron42
jisim atom relatif
67.952875 ± 0.000207 Da
g-factor
0
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
188 ± 4 ms
Spin0
nuclear quadrupole moment
0
tarikh penemuan1985
parity+

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

69Fe

Nombor jisim69
nombor neutron43
jisim atom relatif
68.957918 ± 0.000215 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
162 ± 7 ms
Spin1/2
nuclear quadrupole moment
0
tarikh penemuan1992
parity-

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

70Fe

Nombor jisim70
nombor neutron44
jisim atom relatif
69.960397 ± 0.000322 Da
g-factor
0
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
61.4 ± 0.7 ms
Spin0
nuclear quadrupole moment
0
tarikh penemuan1997
parity+

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

71Fe

Nombor jisim71
nombor neutron45
jisim atom relatif
70.965722 ± 0.000429 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
34.3 ± 2.6 ms
Spin7/2
nuclear quadrupole moment
tarikh penemuan1997
parity+

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

72Fe

Nombor jisim72
nombor neutron46
jisim atom relatif
71.968599 ± 0.000537 Da
g-factor
0
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
17 ± 1 ms
Spin0
nuclear quadrupole moment
0
tarikh penemuan1997
parity+

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

73Fe

Nombor jisim73
nombor neutron47
jisim atom relatif
72.974246 ± 0.000537 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
12.9 ± 1.6 ms
Spin7/2
nuclear quadrupole moment
tarikh penemuan2010
parity+

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

74Fe

Nombor jisim74
nombor neutron48
jisim atom relatif
73.977821 ± 0.000537 Da
g-factor
0
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
5 ± 5 ms
Spin0
nuclear quadrupole moment
0
tarikh penemuan2010
parity+

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

75Fe

Nombor jisim75
nombor neutron49
jisim atom relatif
74.984219 ± 0.000644 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
Spin9/2
nuclear quadrupole moment
tarikh penemuan2013
parity+

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

76Fe

Nombor jisim76
nombor neutron50
jisim atom relatif
75.988631 ± 0.000644 Da
g-factor
0
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
Spin0
nuclear quadrupole moment
0
tarikh penemuan2017
parity+

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

sejarah

penemu atau perekaKnown to the ancients.
tempat penemuan
tarikh penemuan
EtimologiAnglo-Saxon: iron; symbol from Latin: ferrum (iron).
sebutanEYE-ern (Inggeris)

sumber

Abundance
Abundance in Earth's crust
56,300 mg/kg
natural abundance (lautan)
0.002 mg/L
natural abundance (Tubuh manusia)
0.006 %
natural abundance (Meteoroid)
22 %
natural abundance (Matahari)
0.1 %
Abundance in Universe
0.11 %

Nuclear Screening Constants

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