Hekur (Fe)

chemical element with symbol Fe and atomic number 26

Atomic Number	26
Atomic Weight	55.845
Numri i masës	56

Group	8
Period	4
Block	d

protoni	26 p⁺
neutroni	30 n⁰
elektroni	26 e^-

Tipar Fizik

Atomic Radius	140 pm 237 pm
molar volume	7,1 cm³/mol
covalent radius	116 pm 109 pm 102 pm 140 pm 142 pm
Metallic Radius	117 pm 126 pm
ionic radius	63 pm 64 pm 61 pm 78 pm 92 pm 49 pm 58 pm 55 pm 64,5 pm 78 pm 58,5 pm 25 pm
Crystal Radius	77 pm 78 pm 75 pm 92 pm 106 pm 63 pm 72 pm 69 pm 78,5 pm 92 pm 72,5 pm 39 pm
Van der Waals radius	205 pm 204 pm 223 pm 291,2 pm
density	7,87 g/cm³ 6 980 kg/m³

Chemical Property

{ERROR}

energjia

proton affinity	754 kJ/mol
electron affinity	0,151 eV/particle
ionization energy	7,9024678 eV/particle 16,1992 eV/particle 30,651 eV/particle 54,91 eV/particle 75 eV/particle 98,985 eV/particle 125 eV/particle 151,06 eV/particle 233,6 eV/particle 262,1 eV/particle 290,9 eV/particle 330,81 eV/particle 361 eV/particle 392,2 eV/particle 456,2 eV/particle 489,312 eV/particle 1 262,7 eV/particle 1 357,8 eV/particle 1 460 eV/particle 1 575,6 eV/particle 1 687 eV/particle 1 798,43 eV/particle 1 950,4 eV/particle 2 045,759 eV/particle 8 828,1875 eV/particle 9 277,681 eV/particle

enthalpy of vaporization	340 kJ/mol
enthalpy of fusion	13,8 kJ/mol
standard enthalpy of formation	415,5 kJ/mol
elektroni

electron shell	2, 8, 14, 2

valence electron	2 ⓘ

konfigurimi i elektronit	[Ar] 3d⁶ 4s²ⓘ 1s² 2s² 2p⁶ 3s² 3p⁶ 3d⁶ 4s²

oxidation number	-4, -2, -1, 0, 1, 2, 3, 4, 5, 6, 7
Elektronegativiteti	10,64 eV/particle 0.1392532 1.83
Electrophilicity Index	1,045904228706801 eV/particle
fundamental state of matter

gjendja agregate e materies
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
Ngjyra	Black #ffa500 #e06633 #e06633
appearance	lustrous 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	25,1 J/(mol K)
Specific Heat Capacity	0,449 J/(g⋅K)
heat capacity ratio
electrical properties
type	Conductor
electrical conductivity	10 MS/m
electrical resistivity	0,00000009700000000001 Ω*m
Superpërcjellshmëria
Magnetizimi
type	ferromagnetic
magnetic susceptibility (Mass)
magnetic susceptibility (Molar)
magnetic susceptibility (Volume)
magnetic ordering
Curie temperature	1 043 K
Néel temperature
strukturë
Crystal Structure	{ERROR}
lattice constant	2,87 Å
Lattice Angles	π/2, π/2, π/2
mechanical property
hardness	490 MPa 4 MPa 608 MPa
bulk modulus	170 GPa
shear modulus	82 GPa
Young's modulus	211 GPa
Poisson's ratio	0,29
Shpejtësia e zërit	4 910 m/s
klasifikim
Category	Actinides, Transition metals
CAS Group	VIIIA
IUPAC Group	VIII
Glawe Number	71
Mendeleev Number	59
Pettifor Number	61
Geochemical Class	major
Goldschmidt classification	siderophile

other

Gas Basicity	731,1 kJ/mol
polarizability	62 ± 4 a₀
C6 Dispersion Coefficient	482 a₀ 548 a₀
allotrope
Neutron cross section	2,56
Neutron Mass Absorption	0,0015
numër kuantik	5D4
space group	229 (Im_3m)

Isotopes of Iron

Stable Isotopes	3
Unstable Isotopes	29
Natural Isotopes	4

⁴⁵Fe

Numri i masës	45
numri i neutroneve	19
Relative Atomic Mass	45,015467 ± 0,000304 Da
g-factor
natural abundance
Radioaktivitet	☢️ radioactive element
half-life	2,5 ± 0,2 ms
Spini	3/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes	1996
parity	+

decay mode	intensitet
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

Numri i masës	46
numri i neutroneve	20
Relative Atomic Mass	46,001299 ± 0,000322 Da
g-factor	0
natural abundance
Radioaktivitet	☢️ radioactive element
half-life	13 ± 2 ms
Spini	0
nuclear quadrupole moment	0
koha e zbulimit apo shpikjes	1992
parity	+

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

⁴⁷Fe

Numri i masës	47
numri i neutroneve	21
Relative Atomic Mass	46,992346 ± 0,000537 Da
g-factor
natural abundance
Radioaktivitet	☢️ radioactive element
half-life	21,9 ± 0,2 ms
Spini	7/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes	1992
parity	-

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

⁴⁸Fe

Numri i masës	48
numri i neutroneve	22
Relative Atomic Mass	47,980667 ± 0,000099 Da
g-factor	0
natural abundance
Radioaktivitet	☢️ radioactive element
half-life	45,3 ± 0,6 ms
Spini	0
nuclear quadrupole moment	0
koha e zbulimit apo shpikjes	1987
parity	+

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

⁴⁹Fe

Numri i masës	49
numri i neutroneve	23
Relative Atomic Mass	48,973429 ± 0,000026 Da
g-factor
natural abundance
Radioaktivitet	☢️ radioactive element
half-life	64,7 ± 0,3 ms
Spini	7/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes	1970
parity	-

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

⁵⁰Fe

Numri i masës	50
numri i neutroneve	24
Relative Atomic Mass	49,962988 ± 0,000009 Da
g-factor	0
natural abundance
Radioaktivitet	☢️ radioactive element
half-life	152 ± 0,6 ms
Spini	0
nuclear quadrupole moment	0
koha e zbulimit apo shpikjes	1977
parity	+

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

⁵¹Fe

Numri i masës	51
numri i neutroneve	25
Relative Atomic Mass	50,956855137 ± 0,000001501 Da
g-factor
natural abundance
Radioaktivitet	☢️ radioactive element
half-life	305,4 ± 2,3 ms
Spini	5/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes	1972
parity	-

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

⁵²Fe

Numri i masës	52
numri i neutroneve	26
Relative Atomic Mass	51,948113364 ± 0,000000192 Da
g-factor	0
natural abundance
Radioaktivitet	☢️ radioactive element
half-life	8,275 ± 0,008 h
Spini	0
nuclear quadrupole moment	0
koha e zbulimit apo shpikjes	1948
parity	+

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

⁵³Fe

Numri i masës	53
numri i neutroneve	27
Relative Atomic Mass	52,945305629 ± 0,000001792 Da
g-factor	-0,18571428571429 ± 0,0028571428571429
natural abundance
Radioaktivitet	☢️ radioactive element
half-life	8,51 ± 0,02 m
Spini	7/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes	1938
parity	-

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

⁵⁴Fe

Numri i masës	54
numri i neutroneve	28
Relative Atomic Mass	53,939608189 ± 0,000000368 Da
g-factor	0
natural abundance	5,845 ± 0,105
Radioaktivitet	☢️ radioactive element
half-life
Spini	0
nuclear quadrupole moment	0
koha e zbulimit apo shpikjes	1923
parity	+

decay mode	intensitet
2β⁺ (double β⁺ decay)

⁵⁵Fe

Numri i masës	55
numri i neutroneve	29
Relative Atomic Mass	54,938291158 ± 0,00000033 Da
g-factor
natural abundance
Radioaktivitet	☢️ radioactive element
half-life	2,7562 ± 0,0004 y
Spini	3/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes	1939
parity	-

decay mode	intensitet
ϵ (electron capture)	100%

⁵⁶Fe

Numri i masës	56
numri i neutroneve	30
Relative Atomic Mass	55,934935537 ± 0,000000287 Da
g-factor	0
natural abundance	91,754 ± 0,106
Radioaktivitet	stable isotope
half-life	Not Radioactive ☢️
Spini	0
nuclear quadrupole moment	0
koha e zbulimit apo shpikjes	1923
parity	+

⁵⁷Fe

Numri i masës	57
numri i neutroneve	31
Relative Atomic Mass	56,93539195 ± 0,000000287 Da
g-factor
natural abundance	2,119 ± 0,029
Radioaktivitet	stable isotope
half-life	Not Radioactive ☢️
Spini	1/2
nuclear quadrupole moment	0
koha e zbulimit apo shpikjes	1935
parity	-

⁵⁸Fe

Numri i masës	58
numri i neutroneve	32
Relative Atomic Mass	57,933273575 ± 0,000000339 Da
g-factor	0
natural abundance	0,282 ± 0,012
Radioaktivitet	stable isotope
half-life	Not Radioactive ☢️
Spini	0
nuclear quadrupole moment	0
koha e zbulimit apo shpikjes	1935
parity	+

⁵⁹Fe

Numri i masës	59
numri i neutroneve	33
Relative Atomic Mass	58,934873492 ± 0,000000354 Da
g-factor	-0,22386666666667 ± 0,00026666666666667
natural abundance
Radioaktivitet	☢️ radioactive element
half-life	44,5 ± 0,012 d
Spini	3/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes	1938
parity	-

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

⁶⁰Fe

Numri i masës	60
numri i neutroneve	34
Relative Atomic Mass	59,934070249 ± 0,000003656 Da
g-factor	0
natural abundance
Radioaktivitet	☢️ radioactive element
half-life	2,62 ± 0,04 My
Spini	0
nuclear quadrupole moment	0
koha e zbulimit apo shpikjes	1957
parity	+

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

⁶¹Fe

Numri i masës	61
numri i neutroneve	35
Relative Atomic Mass	60,936746241 ± 0,0000028 Da
g-factor
natural abundance
Radioaktivitet	☢️ radioactive element
half-life	5,98 ± 0,06 m
Spini	3/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes	1957
parity	-

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

⁶²Fe

Numri i masës	62
numri i neutroneve	36
Relative Atomic Mass	61,936791809 ± 0,000003 Da
g-factor	0
natural abundance
Radioaktivitet	☢️ radioactive element
half-life	68 ± 2 s
Spini	0
nuclear quadrupole moment	0
koha e zbulimit apo shpikjes	1975
parity	+

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

⁶³Fe

Numri i masës	63
numri i neutroneve	37
Relative Atomic Mass	62,940272698 ± 0,000004618 Da
g-factor
natural abundance
Radioaktivitet	☢️ radioactive element
half-life	6,1 ± 0,6 s
Spini	5/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes	1980
parity	-

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

⁶⁴Fe

Numri i masës	64
numri i neutroneve	38
Relative Atomic Mass	63,940987761 ± 0,000005386 Da
g-factor	0
natural abundance
Radioaktivitet	☢️ radioactive element
half-life	2 ± 0,2 s
Spini	0
nuclear quadrupole moment	0
koha e zbulimit apo shpikjes	1980
parity	+

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

⁶⁵Fe

Numri i masës	65
numri i neutroneve	39
Relative Atomic Mass	64,945015323 ± 0,000005487 Da
g-factor
natural abundance
Radioaktivitet	☢️ radioactive element
half-life	805 ± 10 ms
Spini	1/2
nuclear quadrupole moment	0
koha e zbulimit apo shpikjes	1980
parity	-

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

⁶⁶Fe

Numri i masës	66
numri i neutroneve	40
Relative Atomic Mass	65,946249958 ± 0,0000044 Da
g-factor	0
natural abundance
Radioaktivitet	☢️ radioactive element
half-life	467 ± 29 ms
Spini	0
nuclear quadrupole moment	0
koha e zbulimit apo shpikjes	1985
parity	+

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

⁶⁷Fe

Numri i masës	67
numri i neutroneve	41
Relative Atomic Mass	66,95093 ± 0,0000041 Da
g-factor
natural abundance
Radioaktivitet	☢️ radioactive element
half-life	394 ± 9 ms
Spini	1/2
nuclear quadrupole moment	0
koha e zbulimit apo shpikjes	1985
parity	-

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

⁶⁸Fe

Numri i masës	68
numri i neutroneve	42
Relative Atomic Mass	67,952875 ± 0,000207 Da
g-factor	0
natural abundance
Radioaktivitet	☢️ radioactive element
half-life	188 ± 4 ms
Spini	0
nuclear quadrupole moment	0
koha e zbulimit apo shpikjes	1985
parity	+

decay mode	intensitet
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	0%

⁶⁹Fe

Numri i masës	69
numri i neutroneve	43
Relative Atomic Mass	68,957918 ± 0,000215 Da
g-factor
natural abundance
Radioaktivitet	☢️ radioactive element
half-life	162 ± 7 ms
Spini	1/2
nuclear quadrupole moment	0
koha e zbulimit apo shpikjes	1992
parity	-

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

⁷⁰Fe

Numri i masës	70
numri i neutroneve	44
Relative Atomic Mass	69,960397 ± 0,000322 Da
g-factor	0
natural abundance
Radioaktivitet	☢️ radioactive element
half-life	61,4 ± 0,7 ms
Spini	0
nuclear quadrupole moment	0
koha e zbulimit apo shpikjes	1997
parity	+

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

⁷¹Fe

Numri i masës	71
numri i neutroneve	45
Relative Atomic Mass	70,965722 ± 0,000429 Da
g-factor
natural abundance
Radioaktivitet	☢️ radioactive element
half-life	34,3 ± 2,6 ms
Spini	7/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes	1997
parity	+

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

⁷²Fe

Numri i masës	72
numri i neutroneve	46
Relative Atomic Mass	71,968599 ± 0,000537 Da
g-factor	0
natural abundance
Radioaktivitet	☢️ radioactive element
half-life	17 ± 1 ms
Spini	0
nuclear quadrupole moment	0
koha e zbulimit apo shpikjes	1997
parity	+

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

⁷³Fe

Numri i masës	73
numri i neutroneve	47
Relative Atomic Mass	72,974246 ± 0,000537 Da
g-factor
natural abundance
Radioaktivitet	☢️ radioactive element
half-life	12,9 ± 1,6 ms
Spini	7/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes	2010
parity	+

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

⁷⁴Fe

Numri i masës	74
numri i neutroneve	48
Relative Atomic Mass	73,977821 ± 0,000537 Da
g-factor	0
natural abundance
Radioaktivitet	☢️ radioactive element
half-life	5 ± 5 ms
Spini	0
nuclear quadrupole moment	0
koha e zbulimit apo shpikjes	2010
parity	+

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

⁷⁵Fe

Numri i masës	75
numri i neutroneve	49
Relative Atomic Mass	74,984219 ± 0,000644 Da
g-factor
natural abundance
Radioaktivitet	☢️ radioactive element
half-life
Spini	9/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes	2013
parity	+

decay mode	intensitet
β⁻ (β⁻ decay)
β⁻ n (β⁻-delayed neutron emission)
2n (2-neutron emission)

⁷⁶Fe

Numri i masës	76
numri i neutroneve	50
Relative Atomic Mass	75,988631 ± 0,000644 Da
g-factor	0
natural abundance
Radioaktivitet	☢️ radioactive element
half-life
Spini	0
nuclear quadrupole moment	0
koha e zbulimit apo shpikjes	2017
parity	+

decay mode	intensitet
β⁻ (β⁻ decay)

historia

zbulues	Known to the ancients.
vendndodhja e zbulimit
koha e zbulimit apo shpikjes
Etimologjia	Anglo-Saxon: iron; symbol from Latin: ferrum (iron).
pronunciation	EYE-ern (anglisht)

burim

Abundance
Abundance in Earth's crust	56 300 mg/kg
natural abundance (Oqeani)	0,002 mg/L
natural abundance (Trupi i njeriut)	0,006 %
natural abundance (meteoroid)	22 %
natural abundance (Diell)	0,1 %
Abundance in Universe	0,11 %

Nuclear Screening Constants

1	s	0.619
2	p	3.9112
2	s	7.401
3	d	14.8202
3	p	13.2221
3	s	12.3239
4	s	20.566

Hekur on ChemicalAid

Hekur (Fe)

Tipar Fizik

Chemical Property

other

Isotopes of Iron

45Fe

46Fe

47Fe

48Fe

49Fe

50Fe

51Fe

52Fe

53Fe

54Fe

55Fe

56Fe

57Fe

58Fe

59Fe

60Fe

61Fe

62Fe

63Fe

64Fe

65Fe

66Fe

67Fe

68Fe

69Fe

70Fe

71Fe

72Fe

73Fe

74Fe

75Fe

76Fe

historia

burim

Nuclear Screening Constants

⁴⁵Fe

⁴⁶Fe

⁴⁷Fe

⁴⁸Fe

⁴⁹Fe

⁵⁰Fe

⁵¹Fe

⁵²Fe

⁵³Fe

⁵⁴Fe

⁵⁵Fe

⁵⁶Fe

⁵⁷Fe

⁵⁸Fe

⁵⁹Fe

⁶⁰Fe

⁶¹Fe

⁶²Fe

⁶³Fe

⁶⁴Fe

⁶⁵Fe

⁶⁶Fe

⁶⁷Fe

⁶⁸Fe

⁶⁹Fe

⁷⁰Fe

⁷¹Fe

⁷²Fe

⁷³Fe

⁷⁴Fe

⁷⁵Fe

⁷⁶Fe