Željezo, ²Gvožđe (Fe)

hemijski element sa simbolom Fe i atomskim brojem 26

Atomic Number	26
Atomic Weight	55.845
Maseni broj	56

Group	8
Period	4
Block	d

Proton	26 p⁺
Neutron	30 n⁰
Elektron	26 e^-

Animated Bohrov model atoma of Fe (Željezo, ²Gvožđe)

Physical Property

Atomski Radijus	140 pm 237 pm
Molarni volumen	7,1 cm³/mol
covalent radius	116 pm 109 pm 102 pm 140 pm 142 pm
Metallic Radius	117 pm 126 pm
Ionski radijus	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 Waalsov radijus	205 pm 204 pm 223 pm 291,2 pm
gustoća	7,87 g/cm³ 6.980 kg/m³

Chemical Property

energija

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

Toplota isparavanja	340 kJ/mol
toplota topljenja	13,8 kJ/mol
standard enthalpy of formation	415,5 kJ/mol
Elektron

electron shell	2, 8, 14, 2

Valentni elektron	2 ⓘ

electron configuration	[Ar] 3d⁶ 4s²ⓘ 1s² 2s² 2p⁶ 3s² 3p⁶ 3d⁶ 4s²

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

agregatno stanje	Solid
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 #ffa500 #e06633 #e06633
appearance	lustrous 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	25,1 J/(mol K)
Specific Heat Capacity	0,449 J/(g⋅K)
heat capacity ratio
electrical properties
type	Conductor
Specifična električna provodljivost	10 MS/m
electrical resistivity	0,00000009700000000001 Ω*m
Superprovodljivost
Magnetizam
type	ferromagnetic
magnetic susceptibility (Mass)
magnetic susceptibility (Molar)
magnetic susceptibility (Volume)
magnetic ordering
Kirijeva tačka	1.043 K
Néel temperature
struktura
Crystal Structure	Body Centered Cubic (BCC)
lattice constant	2,87 Å
Lattice Angles	π/2, π/2, π/2
mechanical property
Tvrdoća	490 MPa 4 MPa 608 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
Category	Transition metals, 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
Kvantni brojevi	5D4
space group	229 (Im_3m)

Isotopes of Iron

Stable Isotopes	3
Unstable Isotopes	29
Natural Isotopes	4

⁴⁵Fe

Maseni broj	45
broj neutrona	19
Relative Atomic Mass	45,015467 ± 0,000304 Da
g-factor
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	2,5 ± 0,2 ms
spin	3/2
nuclear quadrupole moment
datum otkrića	1996
parity	+

decay mode	intensity
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 broj	46
broj neutrona	20
Relative Atomic Mass	46,001299 ± 0,000322 Da
g-factor	0
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	13 ± 2 ms
spin	0
nuclear quadrupole moment	0
datum otkrića	1992
parity	+

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

⁴⁷Fe

Maseni broj	47
broj neutrona	21
Relative Atomic Mass	46,992346 ± 0,000537 Da
g-factor
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	21,9 ± 0,2 ms
spin	7/2
nuclear quadrupole moment
datum otkrića	1992
parity	-

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

⁴⁸Fe

Maseni broj	48
broj neutrona	22
Relative Atomic Mass	47,980667 ± 0,000099 Da
g-factor	0
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	45,3 ± 0,6 ms
spin	0
nuclear quadrupole moment	0
datum otkrića	1987
parity	+

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

⁴⁹Fe

Maseni broj	49
broj neutrona	23
Relative Atomic Mass	48,973429 ± 0,000026 Da
g-factor
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	64,7 ± 0,3 ms
spin	7/2
nuclear quadrupole moment
datum otkrića	1970
parity	-

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

⁵⁰Fe

Maseni broj	50
broj neutrona	24
Relative Atomic Mass	49,962988 ± 0,000009 Da
g-factor	0
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	152 ± 0,6 ms
spin	0
nuclear quadrupole moment	0
datum otkrića	1977
parity	+

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

⁵¹Fe

Maseni broj	51
broj neutrona	25
Relative Atomic Mass	50,956855137 ± 0,000001501 Da
g-factor
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	305,4 ± 2,3 ms
spin	5/2
nuclear quadrupole moment
datum otkrića	1972
parity	-

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

⁵²Fe

Maseni broj	52
broj neutrona	26
Relative Atomic Mass	51,948113364 ± 0,000000192 Da
g-factor	0
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	8,275 ± 0,008 h
spin	0
nuclear quadrupole moment	0
datum otkrića	1948
parity	+

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

⁵³Fe

Maseni broj	53
broj neutrona	27
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
spin	7/2
nuclear quadrupole moment
datum otkrića	1938
parity	-

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

⁵⁴Fe

Maseni broj	54
broj neutrona	28
Relative Atomic Mass	53,939608189 ± 0,000000368 Da
g-factor	0
natural abundance	5,845 ± 0,105
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada
spin	0
nuclear quadrupole moment	0
datum otkrića	1923
parity	+

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

⁵⁵Fe

Maseni broj	55
broj neutrona	29
Relative Atomic Mass	54,938291158 ± 0,00000033 Da
g-factor
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	2,7562 ± 0,0004 y
spin	3/2
nuclear quadrupole moment
datum otkrića	1939
parity	-

decay mode	intensity
ϵ (electron capture)	100%

⁵⁶Fe

Maseni broj	56
broj neutrona	30
Relative Atomic Mass	55,934935537 ± 0,000000287 Da
g-factor	0
natural abundance	91,754 ± 0,106
Radioaktivnost	stable isotope
Vrijeme poluraspada	Not Radioactive ☢️
spin	0
nuclear quadrupole moment	0
datum otkrića	1923
parity	+

⁵⁷Fe

Maseni broj	57
broj neutrona	31
Relative Atomic Mass	56,93539195 ± 0,000000287 Da
g-factor
natural abundance	2,119 ± 0,029
Radioaktivnost	stable isotope
Vrijeme poluraspada	Not Radioactive ☢️
spin	1/2
nuclear quadrupole moment	0
datum otkrića	1935
parity	-

⁵⁸Fe

Maseni broj	58
broj neutrona	32
Relative Atomic Mass	57,933273575 ± 0,000000339 Da
g-factor	0
natural abundance	0,282 ± 0,012
Radioaktivnost	stable isotope
Vrijeme poluraspada	Not Radioactive ☢️
spin	0
nuclear quadrupole moment	0
datum otkrića	1935
parity	+

⁵⁹Fe

Maseni broj	59
broj neutrona	33
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
spin	3/2
nuclear quadrupole moment
datum otkrića	1938
parity	-

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

⁶⁰Fe

Maseni broj	60
broj neutrona	34
Relative Atomic Mass	59,934070249 ± 0,000003656 Da
g-factor	0
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	2,62 ± 0,04 My
spin	0
nuclear quadrupole moment	0
datum otkrića	1957
parity	+

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

⁶¹Fe

Maseni broj	61
broj neutrona	35
Relative Atomic Mass	60,936746241 ± 0,0000028 Da
g-factor
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	5,98 ± 0,06 m
spin	3/2
nuclear quadrupole moment
datum otkrića	1957
parity	-

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

⁶²Fe

Maseni broj	62
broj neutrona	36
Relative Atomic Mass	61,936791809 ± 0,000003 Da
g-factor	0
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	68 ± 2 s
spin	0
nuclear quadrupole moment	0
datum otkrića	1975
parity	+

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

⁶³Fe

Maseni broj	63
broj neutrona	37
Relative Atomic Mass	62,940272698 ± 0,000004618 Da
g-factor
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	6,1 ± 0,6 s
spin	5/2
nuclear quadrupole moment
datum otkrića	1980
parity	-

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

⁶⁴Fe

Maseni broj	64
broj neutrona	38
Relative Atomic Mass	63,940987761 ± 0,000005386 Da
g-factor	0
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	2 ± 0,2 s
spin	0
nuclear quadrupole moment	0
datum otkrića	1980
parity	+

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

⁶⁵Fe

Maseni broj	65
broj neutrona	39
Relative Atomic Mass	64,945015323 ± 0,000005487 Da
g-factor
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	805 ± 10 ms
spin	1/2
nuclear quadrupole moment	0
datum otkrića	1980
parity	-

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

⁶⁶Fe

Maseni broj	66
broj neutrona	40
Relative Atomic Mass	65,946249958 ± 0,0000044 Da
g-factor	0
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	467 ± 29 ms
spin	0
nuclear quadrupole moment	0
datum otkrića	1985
parity	+

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

⁶⁷Fe

Maseni broj	67
broj neutrona	41
Relative Atomic Mass	66,95093 ± 0,0000041 Da
g-factor
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	394 ± 9 ms
spin	1/2
nuclear quadrupole moment	0
datum otkrića	1985
parity	-

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

⁶⁸Fe

Maseni broj	68
broj neutrona	42
Relative Atomic Mass	67,952875 ± 0,000207 Da
g-factor	0
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	188 ± 4 ms
spin	0
nuclear quadrupole moment	0
datum otkrića	1985
parity	+

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

⁶⁹Fe

Maseni broj	69
broj neutrona	43
Relative Atomic Mass	68,957918 ± 0,000215 Da
g-factor
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	162 ± 7 ms
spin	1/2
nuclear quadrupole moment	0
datum otkrića	1992
parity	-

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

⁷⁰Fe

Maseni broj	70
broj neutrona	44
Relative Atomic Mass	69,960397 ± 0,000322 Da
g-factor	0
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	61,4 ± 0,7 ms
spin	0
nuclear quadrupole moment	0
datum otkrića	1997
parity	+

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

⁷¹Fe

Maseni broj	71
broj neutrona	45
Relative Atomic Mass	70,965722 ± 0,000429 Da
g-factor
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	34,3 ± 2,6 ms
spin	7/2
nuclear quadrupole moment
datum otkrića	1997
parity	+

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

⁷²Fe

Maseni broj	72
broj neutrona	46
Relative Atomic Mass	71,968599 ± 0,000537 Da
g-factor	0
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	17 ± 1 ms
spin	0
nuclear quadrupole moment	0
datum otkrića	1997
parity	+

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

⁷³Fe

Maseni broj	73
broj neutrona	47
Relative Atomic Mass	72,974246 ± 0,000537 Da
g-factor
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	12,9 ± 1,6 ms
spin	7/2
nuclear quadrupole moment
datum otkrića	2010
parity	+

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

⁷⁴Fe

Maseni broj	74
broj neutrona	48
Relative Atomic Mass	73,977821 ± 0,000537 Da
g-factor	0
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	5 ± 5 ms
spin	0
nuclear quadrupole moment	0
datum otkrića	2010
parity	+

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

⁷⁵Fe

Maseni broj	75
broj neutrona	49
Relative Atomic Mass	74,984219 ± 0,000644 Da
g-factor
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada
spin	9/2
nuclear quadrupole moment
datum otkrića	2013
parity	+

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

⁷⁶Fe

Maseni broj	76
broj neutrona	50
Relative Atomic Mass	75,988631 ± 0,000644 Da
g-factor	0
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada
spin	0
nuclear quadrupole moment	0
datum otkrića	2017
parity	+

decay mode	intensity
β⁻ (β⁻ decay)

historija

otkrivač ili izumitelj	Known to the ancients.
mjesto otkrića
datum otkrića
Etimologija	Anglo-Saxon: iron; symbol from Latin: ferrum (iron).
pronunciation	EYE-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

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

Željezo, ²Gvožđe on ChemicalAid

AAT identifikator	300011002
AEDA subject keyword ID	17568
Australian Educational Vocabulary ID	scot/2214
BNCF pojmovnik	474
BNF kod	11975665r
Biblioteca Nacional de España ID	XX524497
Brockhaus Enzyklopädie online ID	Hola
Brockhaus Enzyklopädie online ID	eisen-20
CAS broj	7439-89-6
ChEBI ID	18248
ChemSpider ID	22368
CosIng number	83503
DSSTOX compound identifier	DTXCID3023710
DSSTox substance ID	DTXSID5043710
Den Store Danske ID	jern
Drugbank ID	01592
ECHA Substance Infocard ID	100.028.270
Encyclopedie berbere keyword ID	2031
Encyclopædia Britannica Online ID	science/iron-chemical-element
Encyclopædia Universalis ID	fer-l-element-metallique
Encyclopædia Universalis ID	fer-vue-d-ensemble
EuroVoc ID	981
Europeana Fashion Vocabulary ID	10552
French Vikidia ID	Fer
GND	4014002-7
Golden ID	Iron-RM8V
Great Aragonese Encyclopedia ID	6825
Great Russian Encyclopedia Online ID	2625019
Gujarati Vishwakosh entry	આયર્ન-લોહ
HDS ID	026231
HSDB ID	604
Human Metabolome Database ID	HMDB0015531
ID Quora teme	Iron
ID na KBpediji	Iron
InChIKey	XEEYBQQBJWHFJM-UHFFFAOYSA-N
InChl	InChI=1S/Fe
Italian Vikidia ID	Ferro
KEGG ID	C00023
Klexikon article ID	Eisen
Krugosvet article	nauka_i_tehnika/himiya/ZHELEZO.html
LCCN	sh85068131
Language of Bindings ID	2416
Latvian National Encyclopedia Online ID	149532
LiverTox ID	Iron
MeSH ID	D007501
MeSH concept ID	M0011718
NALT ID	33434
NDF-RT ID	N0000146032
NE.se ID	järn
NKC identifikator	ph127955
Namuwiki ID	철(원소)
National Library of Israel J9U ID	987007560416405171
Nomisma ID	fe
OmegaWiki određeno značenje	2024
Open Food Facts ingredient ID	iron
PACTOLS thesaurus ID	pcrtJWWucnutA0
PSH ID	5775
Probes And Drugs ID	PD009463
PubChem ID (CID)	23925
RKD thesaurus ID	37450
RxNorm ID	90176
Römpp online ID	RD-05-00418
STW Thesaurus for Economics ID	14281-3
Spanish Cultural Heritage thesauri ID	materias/1000924
Spanish Vikidia ID	Hierro
Store norske leksikon ID	jern
Treccani ID	ferro
UK Archival Thesaurus ID	f2/mt225/4347/3178
UMLS CUI	C0302583
UNESCO Thesaurus ID	concept10788
UNII	E1UOL152H7
USGS Thesaurus ID	1483
Web NDL autoriteti	00572915
WikiSkripta ID	7294
Wolfram Language entity code	Entity["Mineral", "Iron"]
WordNet 3.1 Synset ID	14666595-n
YSO ID	11738
ZVG broj	8210
broj na Freebaseu	/m/025rw19

Željezo, ²Gvožđe (Fe)

Physical Property

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

historija

izvor

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