Željezo

Željezo (Fe)

chemical element with symbol Fe and atomic number 26
Atomski broj26
Relativna atomska masa55.845
Maseni broj56
Skupina8
Perioda4
Blokd
proton26 p+
neutron30 n0
elektron26 e-
Animated Bohrov model atoma of Fe (Željezo)

Physical Property

Atomski Radijus
140 pm
Molni volumen
Kovalentni Radijus
116 pm
Metallic Radius
117 pm
Ionski radijus
63 pm
Crystal Radius
77 pm
Van der Waals radius
204 pm
gustoća
7,87 g/cm³
Atomic Radii Of The Elements: Željezo0102030405060708090100110120130140150160170180190200210pmAtomski RadijusKovalentni RadijusMetallic RadiusVan der Waals radius

Kemijsko Svojstvo

energija
proton affinity
754 kJ/mol
Elektronski afinitet
ionization energy
7,9024678 eV/particle
ionization energy of Fe (Željezo)
Toplina isparivanja
340 kJ/mol
toplina taljenja
13,8 kJ/mol
standard enthalpy of formation
415,5 kJ/mol
elektron
Elektronska ljuska2, 8, 14, 2
Bohrov model atoma: Fe (Željezo)
valence electron2
Lewis structure: Fe (Željezo)
electron configuration[Ar] 3d6 4s2
1s2 2s2 2p6 3s2 3p6 3d6 4s2
Enhanced Bohrov model atoma of Fe (Željezo)
Orbital Diagram of Fe (Željezo)
Oksidacijski broj-4, -2, -1, 0, 1, 2, 3, 4, 5, 6, 7
Elektronegativnost
1.83
Electrophilicity Index
1,045904228706801 eV/particle
fundamental state of matter
agregatno stanjeČvrsto
gaseous state of matter
Vrelište
3.134,15 K
Talište
1.811,15 K
critical pressure
critical temperature
9.340,15 K
Trojna točka
appearance
boja
Siva
appearancelustrous metallic with a grayish tinge
Indeks prelamanja
thermodynamic material property
Toplinska vodljivost
80,4 W/(m K)
Toplinsko istezanje
0,0000118 1/K
molar heat capacity
Specifični toplinski kapacitet
0,449 J/(g⋅K)
heat capacity ratio
electrical properties
typeConductor
electrical conductivity
10 MS/m
Električna otpornost i provodnost
0,00000009700000000001 m Ω
Supravodljivost
Magnetizam
typeferromagnetic
Magnetna susceptibilnost (Mass)
Magnetna susceptibilnost (Molar)
Magnetna susceptibilnost (Volume)
magnetic ordering
Curieva temperatura
1.043 K
Néel temperature
struktura
Kristalna strukturaKubna prostorno centrirana (BCC)
lattice constant
2,87 Å
Lattice Anglesπ/2, π/2, π/2
mechanical property
Tvrdoća
4 MPa
bulk modulus
170 GPa
shear modulus
82 GPa
Youngov modul elastičnosti
211 GPa
Poissonov omjer
0,29
brzina zvuka
4.910 m/s
classification
KategorijaPrijelazni metali, 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
Nuklearni udarni presjek
2,56
Neutron Mass Absorption
0,0015
Kvantni brojevi5D4
space group229 (Im_3m)

Isotopes of Iron

Stabilni izotopi3
Nestabilni izotopi29
Natural Isotopes4
Isotopic Composition5691.75%5691.75%545.85%545.85%572.12%572.12%580.28%580.28%

45Fe

Maseni broj45
neutron number19
Relativna atomska masa
45,015467 ± 0,000304 Da
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
2,5 ± 0,2 ms
spin3/2
nuclear quadrupole moment
vrijeme otkrića ili izuma1996
Parnost+

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

Maseni broj46
neutron number20
Relativna atomska masa
46,001299 ± 0,000322 Da
g-factor
0
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
13 ± 2 ms
spin0
nuclear quadrupole moment
0
vrijeme otkrića ili izuma1992
Parnost+

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

47Fe

Maseni broj47
neutron number21
Relativna atomska masa
46,992346 ± 0,000537 Da
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
21,9 ± 0,2 ms
spin7/2
nuclear quadrupole moment
vrijeme otkrića ili izuma1992
Parnost-

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

48Fe

Maseni broj48
neutron number22
Relativna atomska masa
47,980667 ± 0,000099 Da
g-factor
0
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
45,3 ± 0,6 ms
spin0
nuclear quadrupole moment
0
vrijeme otkrića ili izuma1987
Parnost+

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

49Fe

Maseni broj49
neutron number23
Relativna atomska masa
48,973429 ± 0,000026 Da
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
64,7 ± 0,3 ms
spin7/2
nuclear quadrupole moment
vrijeme otkrića ili izuma1970
Parnost-

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

50Fe

Maseni broj50
neutron number24
Relativna atomska masa
49,962988 ± 0,000009 Da
g-factor
0
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
152 ± 0,6 ms
spin0
nuclear quadrupole moment
0
vrijeme otkrića ili izuma1977
Parnost+

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

51Fe

Maseni broj51
neutron number25
Relativna atomska masa
50,956855137 ± 0,000001501 Da
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
305,4 ± 2,3 ms
spin5/2
nuclear quadrupole moment
vrijeme otkrića ili izuma1972
Parnost-

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

52Fe

Maseni broj52
neutron number26
Relativna atomska masa
51,948113364 ± 0,000000192 Da
g-factor
0
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
8,275 ± 0,008 h
spin0
nuclear quadrupole moment
0
vrijeme otkrića ili izuma1948
Parnost+

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

53Fe

Maseni broj53
neutron number27
Relativna atomska masa
52,945305629 ± 0,000001792 Da
g-factor
−0,18571428571429 ± 0,0028571428571429
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
8,51 ± 0,02 m
spin7/2
nuclear quadrupole moment
vrijeme otkrića ili izuma1938
Parnost-

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

54Fe

Maseni broj54
neutron number28
Relativna atomska masa
53,939608189 ± 0,000000368 Da
g-factor
0
natural abundance
5,845 ± 0,105
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
spin0
nuclear quadrupole moment
0
vrijeme otkrića ili izuma1923
Parnost+

decay modeintensity
+ (double β+ decay)

55Fe

Maseni broj55
neutron number29
Relativna atomska masa
54,938291158 ± 0,00000033 Da
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
2,7562 ± 0,0004 y
spin3/2
nuclear quadrupole moment
vrijeme otkrića ili izuma1939
Parnost-

decay modeintensity
ϵ (electron capture)100%

56Fe

Maseni broj56
neutron number30
Relativna atomska masa
55,934935537 ± 0,000000287 Da
g-factor
0
natural abundance
91,754 ± 0,106
radioaktivnoststable isotope
Vrijeme poluraspadaNot Radioactive ☢️
spin0
nuclear quadrupole moment
0
vrijeme otkrića ili izuma1923
Parnost+

57Fe

Maseni broj57
neutron number31
Relativna atomska masa
56,93539195 ± 0,000000287 Da
g-factor
natural abundance
2,119 ± 0,029
radioaktivnoststable isotope
Vrijeme poluraspadaNot Radioactive ☢️
spin1/2
nuclear quadrupole moment
0
vrijeme otkrića ili izuma1935
Parnost-

58Fe

Maseni broj58
neutron number32
Relativna atomska masa
57,933273575 ± 0,000000339 Da
g-factor
0
natural abundance
0,282 ± 0,012
radioaktivnoststable isotope
Vrijeme poluraspadaNot Radioactive ☢️
spin0
nuclear quadrupole moment
0
vrijeme otkrića ili izuma1935
Parnost+

59Fe

Maseni broj59
neutron number33
Relativna atomska masa
58,934873492 ± 0,000000354 Da
g-factor
−0,22386666666667 ± 0,00026666666666667
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
44,5 ± 0,012 d
spin3/2
nuclear quadrupole moment
vrijeme otkrića ili izuma1938
Parnost-

decay modeintensity
β (β decay)100%

60Fe

Maseni broj60
neutron number34
Relativna atomska masa
59,934070249 ± 0,000003656 Da
g-factor
0
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
2,62 ± 0,04 My
spin0
nuclear quadrupole moment
0
vrijeme otkrića ili izuma1957
Parnost+

decay modeintensity
β (β decay)100%

61Fe

Maseni broj61
neutron number35
Relativna atomska masa
60,936746241 ± 0,0000028 Da
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
5,98 ± 0,06 m
spin3/2
nuclear quadrupole moment
vrijeme otkrića ili izuma1957
Parnost-

decay modeintensity
β (β decay)100%

62Fe

Maseni broj62
neutron number36
Relativna atomska masa
61,936791809 ± 0,000003 Da
g-factor
0
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
68 ± 2 s
spin0
nuclear quadrupole moment
0
vrijeme otkrića ili izuma1975
Parnost+

decay modeintensity
β (β decay)100%

63Fe

Maseni broj63
neutron number37
Relativna atomska masa
62,940272698 ± 0,000004618 Da
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
6,1 ± 0,6 s
spin5/2
nuclear quadrupole moment
vrijeme otkrića ili izuma1980
Parnost-

decay modeintensity
β (β decay)100%

64Fe

Maseni broj64
neutron number38
Relativna atomska masa
63,940987761 ± 0,000005386 Da
g-factor
0
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
2 ± 0,2 s
spin0
nuclear quadrupole moment
0
vrijeme otkrića ili izuma1980
Parnost+

decay modeintensity
β (β decay)100%

65Fe

Maseni broj65
neutron number39
Relativna atomska masa
64,945015323 ± 0,000005487 Da
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
805 ± 10 ms
spin1/2
nuclear quadrupole moment
0
vrijeme otkrića ili izuma1980
Parnost-

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

66Fe

Maseni broj66
neutron number40
Relativna atomska masa
65,946249958 ± 0,0000044 Da
g-factor
0
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
467 ± 29 ms
spin0
nuclear quadrupole moment
0
vrijeme otkrića ili izuma1985
Parnost+

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

67Fe

Maseni broj67
neutron number41
Relativna atomska masa
66,95093 ± 0,0000041 Da
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
394 ± 9 ms
spin1/2
nuclear quadrupole moment
0
vrijeme otkrića ili izuma1985
Parnost-

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

68Fe

Maseni broj68
neutron number42
Relativna atomska masa
67,952875 ± 0,000207 Da
g-factor
0
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
188 ± 4 ms
spin0
nuclear quadrupole moment
0
vrijeme otkrića ili izuma1985
Parnost+

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

69Fe

Maseni broj69
neutron number43
Relativna atomska masa
68,957918 ± 0,000215 Da
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
162 ± 7 ms
spin1/2
nuclear quadrupole moment
0
vrijeme otkrića ili izuma1992
Parnost-

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

70Fe

Maseni broj70
neutron number44
Relativna atomska masa
69,960397 ± 0,000322 Da
g-factor
0
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
61,4 ± 0,7 ms
spin0
nuclear quadrupole moment
0
vrijeme otkrića ili izuma1997
Parnost+

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

71Fe

Maseni broj71
neutron number45
Relativna atomska masa
70,965722 ± 0,000429 Da
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
34,3 ± 2,6 ms
spin7/2
nuclear quadrupole moment
vrijeme otkrića ili izuma1997
Parnost+

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

72Fe

Maseni broj72
neutron number46
Relativna atomska masa
71,968599 ± 0,000537 Da
g-factor
0
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
17 ± 1 ms
spin0
nuclear quadrupole moment
0
vrijeme otkrića ili izuma1997
Parnost+

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

73Fe

Maseni broj73
neutron number47
Relativna atomska masa
72,974246 ± 0,000537 Da
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
12,9 ± 1,6 ms
spin7/2
nuclear quadrupole moment
vrijeme otkrića ili izuma2010
Parnost+

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

74Fe

Maseni broj74
neutron number48
Relativna atomska masa
73,977821 ± 0,000537 Da
g-factor
0
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
5 ± 5 ms
spin0
nuclear quadrupole moment
0
vrijeme otkrića ili izuma2010
Parnost+

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

75Fe

Maseni broj75
neutron number49
Relativna atomska masa
74,984219 ± 0,000644 Da
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
spin9/2
nuclear quadrupole moment
vrijeme otkrića ili izuma2013
Parnost+

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

76Fe

Maseni broj76
neutron number50
Relativna atomska masa
75,988631 ± 0,000644 Da
g-factor
0
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
spin0
nuclear quadrupole moment
0
vrijeme otkrića ili izuma2017
Parnost+

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

povijest

otkrio/izumioKnown to the ancients.
location of discovery
vrijeme otkrića ili izuma
EtimologijaAnglo-Saxon: iron; symbol from Latin: ferrum (iron).
pronunciationEYE-ern (engleski)

source

Obilnost
Zastupljenost u Zemljinoj kori
56.300 mg/kg
natural abundance (ocean)
0,002 mg/L
natural abundance (tijelo)
0,006 %
natural abundance (meteoroid)
22 %
natural abundance (Sunce)
0,1 %
Zastupljenost u svemiru
0,11 %

Nuclear Screening Constants

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