Željezo, ²Gvožđe

Željezo, ²Gvožđe (Fe)

hemijski element sa simbolom Fe i atomskim brojem 26
Atomic Number26
Atomic Weight55.845
Maseni broj56
Group8
Period4
Blockd
Proton26 p+
Neutron30 n0
Elektron26 e-
Animated Bohrov model atoma of Fe (Željezo, ²Gvožđe)

Physical Property

Atomski Radijus
140 pm
Molarni volumen
covalent radius
116 pm
Metallic Radius
117 pm
Ionski radijus
63 pm
Crystal Radius
77 pm
Van der Waalsov radijus
204 pm
gustoća
7,87 g/cm³
Atomic Radii Of The Elements: Željezo, ²Gvožđe0102030405060708090100110120130140150160170180190200210pmAtomski RadijusCovalent RadiusMetallic RadiusVan der Waalsov radijus

Chemical Property

energija
proton affinity
754 kJ/mol
electron affinity
ionization energy
7,9024678 eV/particle
ionization energy of Fe (Željezo, ²Gvožđe)
Toplota isparavanja
340 kJ/mol
toplota topljenja
13,8 kJ/mol
standard enthalpy of formation
415,5 kJ/mol
Elektron
electron shell2, 8, 14, 2
Bohrov model atoma: Fe (Željezo, ²Gvožđe)
Valentni elektron2
Lewis structure: Fe (Željezo, ²Gvožđe)
electron configuration[Ar] 3d6 4s2
1s2 2s2 2p6 3s2 3p6 3d6 4s2
Enhanced Bohrov model atoma of Fe (Željezo, ²Gvožđe)
Orbital Diagram of Fe (Željezo, ²Gvožđe)
oksidacijsko stanje-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 stanjeSolid
gaseous state of matter
Boiling Point
3.134,15 K
Melting Point
1.811,15 K
critical pressure
Kritična temperatura
9.340,15 K
Trojna tačka
appearance
boja
Gray
appearancelustrous metallic with a grayish tinge
Indeks prelamanja
thermodynamic material property
Thermal Conductivity
80,4 W/(m K)
thermal expansion
0,0000118 1/K
molar heat capacity
Specific Heat Capacity
0,449 J/(g⋅K)
heat capacity ratio
electrical properties
typeConductor
Specifična električna provodljivost
10 MS/m
electrical resistivity
0,00000009700000000001 m Ω
Superprovodljivost
Magnetizam
typeferromagnetic
magnetic susceptibility (Mass)
magnetic susceptibility (Molar)
magnetic susceptibility (Volume)
magnetic ordering
Kirijeva tačka
1.043 K
Néel temperature
struktura
Crystal StructureBody Centered Cubic (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
Young's modulus
211 GPa
Poisson's ratio
0,29
Brzina zvuka
4.910 m/s
klasifikacija
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
Kvantni brojevi5D4
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

Maseni broj45
broj neutrona19
relative atomic mass
45,015467 ± 0,000304 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
2,5 ± 0,2 ms
spin3/2
nuclear quadrupole moment
datum otkrića1996
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

Maseni broj46
broj neutrona20
relative atomic mass
46,001299 ± 0,000322 Da
g-factor
0
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
13 ± 2 ms
spin0
nuclear quadrupole moment
0
datum otkrića1992
parity+

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

47Fe

Maseni broj47
broj neutrona21
relative atomic mass
46,992346 ± 0,000537 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
21,9 ± 0,2 ms
spin7/2
nuclear quadrupole moment
datum otkrića1992
parity-

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

48Fe

Maseni broj48
broj neutrona22
relative atomic mass
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
datum otkrića1987
parity+

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

49Fe

Maseni broj49
broj neutrona23
relative atomic mass
48,973429 ± 0,000026 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
64,7 ± 0,3 ms
spin7/2
nuclear quadrupole moment
datum otkrića1970
parity-

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

50Fe

Maseni broj50
broj neutrona24
relative atomic mass
49,962988 ± 0,000009 Da
g-factor
0
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
152 ± 0,6 ms
spin0
nuclear quadrupole moment
0
datum otkrića1977
parity+

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

51Fe

Maseni broj51
broj neutrona25
relative atomic mass
50,956855137 ± 0,000001501 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
305,4 ± 2,3 ms
spin5/2
nuclear quadrupole moment
datum otkrića1972
parity-

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

52Fe

Maseni broj52
broj neutrona26
relative atomic mass
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
datum otkrića1948
parity+

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

53Fe

Maseni broj53
broj neutrona27
relative atomic mass
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
datum otkrića1938
parity-

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

54Fe

Maseni broj54
broj neutrona28
relative atomic mass
53,939608189 ± 0,000000368 Da
g-factor
0
natural abundance
5,845 ± 0,105
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
spin0
nuclear quadrupole moment
0
datum otkrića1923
parity+

decay modeintensity
+ (double β+ decay)

55Fe

Maseni broj55
broj neutrona29
relative atomic mass
54,938291158 ± 0,00000033 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
2,7562 ± 0,0004 y
spin3/2
nuclear quadrupole moment
datum otkrića1939
parity-

decay modeintensity
ϵ (electron capture)100%

56Fe

Maseni broj56
broj neutrona30
relative atomic mass
55,934935537 ± 0,000000287 Da
g-factor
0
natural abundance
91,754 ± 0,106
Radioaktivnoststable isotope
Vrijeme poluraspadaNot Radioactive ☢️
spin0
nuclear quadrupole moment
0
datum otkrića1923
parity+

57Fe

Maseni broj57
broj neutrona31
relative atomic mass
56,93539195 ± 0,000000287 Da
g-factor
natural abundance
2,119 ± 0,029
Radioaktivnoststable isotope
Vrijeme poluraspadaNot Radioactive ☢️
spin1/2
nuclear quadrupole moment
0
datum otkrića1935
parity-

58Fe

Maseni broj58
broj neutrona32
relative atomic mass
57,933273575 ± 0,000000339 Da
g-factor
0
natural abundance
0,282 ± 0,012
Radioaktivnoststable isotope
Vrijeme poluraspadaNot Radioactive ☢️
spin0
nuclear quadrupole moment
0
datum otkrića1935
parity+

59Fe

Maseni broj59
broj neutrona33
relative atomic mass
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
datum otkrića1938
parity-

decay modeintensity
β (β decay)100%

60Fe

Maseni broj60
broj neutrona34
relative atomic mass
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
datum otkrića1957
parity+

decay modeintensity
β (β decay)100%

61Fe

Maseni broj61
broj neutrona35
relative atomic mass
60,936746241 ± 0,0000028 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
5,98 ± 0,06 m
spin3/2
nuclear quadrupole moment
datum otkrića1957
parity-

decay modeintensity
β (β decay)100%

62Fe

Maseni broj62
broj neutrona36
relative atomic mass
61,936791809 ± 0,000003 Da
g-factor
0
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
68 ± 2 s
spin0
nuclear quadrupole moment
0
datum otkrića1975
parity+

decay modeintensity
β (β decay)100%

63Fe

Maseni broj63
broj neutrona37
relative atomic mass
62,940272698 ± 0,000004618 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
6,1 ± 0,6 s
spin5/2
nuclear quadrupole moment
datum otkrića1980
parity-

decay modeintensity
β (β decay)100%

64Fe

Maseni broj64
broj neutrona38
relative atomic mass
63,940987761 ± 0,000005386 Da
g-factor
0
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
2 ± 0,2 s
spin0
nuclear quadrupole moment
0
datum otkrića1980
parity+

decay modeintensity
β (β decay)100%

65Fe

Maseni broj65
broj neutrona39
relative atomic mass
64,945015323 ± 0,000005487 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
805 ± 10 ms
spin1/2
nuclear quadrupole moment
0
datum otkrića1980
parity-

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

66Fe

Maseni broj66
broj neutrona40
relative atomic mass
65,946249958 ± 0,0000044 Da
g-factor
0
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
467 ± 29 ms
spin0
nuclear quadrupole moment
0
datum otkrića1985
parity+

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

67Fe

Maseni broj67
broj neutrona41
relative atomic mass
66,95093 ± 0,0000041 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
394 ± 9 ms
spin1/2
nuclear quadrupole moment
0
datum otkrića1985
parity-

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

68Fe

Maseni broj68
broj neutrona42
relative atomic mass
67,952875 ± 0,000207 Da
g-factor
0
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
188 ± 4 ms
spin0
nuclear quadrupole moment
0
datum otkrića1985
parity+

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

69Fe

Maseni broj69
broj neutrona43
relative atomic mass
68,957918 ± 0,000215 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
162 ± 7 ms
spin1/2
nuclear quadrupole moment
0
datum otkrića1992
parity-

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

70Fe

Maseni broj70
broj neutrona44
relative atomic mass
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
datum otkrića1997
parity+

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

71Fe

Maseni broj71
broj neutrona45
relative atomic mass
70,965722 ± 0,000429 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
34,3 ± 2,6 ms
spin7/2
nuclear quadrupole moment
datum otkrića1997
parity+

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

72Fe

Maseni broj72
broj neutrona46
relative atomic mass
71,968599 ± 0,000537 Da
g-factor
0
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
17 ± 1 ms
spin0
nuclear quadrupole moment
0
datum otkrića1997
parity+

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

73Fe

Maseni broj73
broj neutrona47
relative atomic mass
72,974246 ± 0,000537 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
12,9 ± 1,6 ms
spin7/2
nuclear quadrupole moment
datum otkrića2010
parity+

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

74Fe

Maseni broj74
broj neutrona48
relative atomic mass
73,977821 ± 0,000537 Da
g-factor
0
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
5 ± 5 ms
spin0
nuclear quadrupole moment
0
datum otkrića2010
parity+

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

75Fe

Maseni broj75
broj neutrona49
relative atomic mass
74,984219 ± 0,000644 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
spin9/2
nuclear quadrupole moment
datum otkrića2013
parity+

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

76Fe

Maseni broj76
broj neutrona50
relative atomic mass
75,988631 ± 0,000644 Da
g-factor
0
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
spin0
nuclear quadrupole moment
0
datum otkrića2017
parity+

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

historija

otkrivač ili izumiteljKnown to the ancients.
mjesto otkrića
datum otkrića
EtimologijaAnglo-Saxon: iron; symbol from Latin: ferrum (iron).
pronunciationEYE-ern (engleski)

izvor

Abundance
Abundance in Earth's crust
56.300 mg/kg
natural abundance (okean)
0,002 mg/L
natural abundance (ljudsko tijelo)
0,006 %
natural abundance (Meteoroidi)
22 %
natural abundance (Sunce)
0,1 %
Abundance in Universe
0,11 %

Nuclear Screening Constants

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