Padron:Infobox iron

Iron, 26Fe
Pure iron chips with a high purity iron cube
Iron
Allotropestingnan ang mga alotropo ng bakal
Appearancelustrous metallic with a grayish tinge
Standard atomic weight Ar°(Fe)
  • 55.845±0.002
  • 55.845±0.002 (pinaikli)[1][2]
Iron sa talahanayang peryodiko
Hydrogen Helium
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Fe

Ru
manganeseironcobalt
Atomikong bilang (Z)26
Group8
Period4
Block  d-block
Electron configuration[Ar] 3d6 4s2
Electrons per shell2, 8, 14, 2
Physical properties
Phase at STPsolido
Melting point1811 K ​(1538 °C, ​2800 °F)
Boiling point3134 K ​(2861 °C, ​5182 °F)
Density (at 20° C)7.874 g/cm3[3]
when liquid (at m.p.)6.98 g/cm3
Heat of fusion13.81 kJ/mol
Heat of vaporization340 kJ/mol
Molar heat capacity25.10 J/(mol·K)
Vapor pressure
P (Pa) 1 10 100 1 k 10 k 100 k
at T (K) 1728 1890 2091 2346 2679 3132
Atomic properties
Oxidation states−4, −2, −1, 0, +1,[4] +2, +3, +4, +5,[5] +6, +7[6] (isang anpoterong oksido)
ElectronegativityPauling scale: 1.83
Ionization energies
  • 1st: 762.5 kJ/mol
  • 2nd: 1561.9 kJ/mol
  • 3rd: 2957 kJ/mol
  • (more)
Atomic radiusempirical: 126 pm
Covalent radiusLow spin: 132±3 pm
High spin: 152±6 pm
Van der Waals radius194 [1] pm
Color lines in a spectral range
Mga linyang espektral ng iron
Other properties
Natural occurrenceprimordiyal
Crystal structureα-Fe: ​body-centered cubic (bcc) (cI2)
Lattice constant
Body-centered cubic crystal structure for α-Fe: iron
a = 286.65 pm (at 20 °C)[3]
Crystal structureγ-Fe (912–1394 °C): ​face-centered cubic (fcc) (cF4)
Lattice constant
Face-centered cubic crystal structure for γ-Fe (912–1394 °C): iron
a = 364.68 pm (at 916 °C)[7]
Thermal expansion12.07×10−6/K (at 20 °C)[3]
Thermal conductivity80.4 W/(m⋅K)
Electrical resistivity96.1 nΩ⋅m (at 20 °C)
Curie point1043 K
Magnetic orderingferromagnetic
Young's modulus211 GPa
Shear modulus82 GPa
Bulk modulus170 GPa
Speed of sound thin rod5120 m/s (at r.t.) (electrolytic)
Poisson ratio0.29
Mohs hardness4
Vickers hardness608 MPa
Brinell hardness200–1180 MPa
CAS Number7439-89-6
History
Discoverybefore 5000 BC
Symbol"Fe": mula sa Latin na ferrum
Isotopes of iron
Main isotopes[8] Decay
abun­dance half-life (t1/2) mode pro­duct
54Fe 5.85% stable
55Fe synth 2.73 y ε 55Mn
56Fe 91.8% stable
57Fe 2.12% stable
58Fe 0.28% stable
59Fe synth 44.6 d β 59Co
60Fe trace 2.6×106 y β 60Co
Kategorya Kategorya: Iron
| references
Fe · Iron
Mn ←

ibox Mn

iso26 Fe  [e]
IB-Fe [e]
IBisos [e]
→ Co

ibox Co

indexes by PT (page)
child table, as reused in {IB-Fe}
Main isotopes of iron
Main isotopes[8] Decay
abun­dance half-life (t1/2) mode pro­duct
54Fe 5.85% stable
55Fe synth 2.73 y ε 55Mn
56Fe 91.8% stable
57Fe 2.12% stable
58Fe 0.28% stable
59Fe synth 44.6 d β 59Co
60Fe trace 2.6×106 y β 60Co
  Data sets read by {{Infobox element}}
Name and identifiers
Top image (caption, alt)
Pronunciation
Allotropes (demo)
Group (demo)
Period (demo)
Block (demo)
Standard atomic weight
  most stable isotope
Natural occurrence
Phase at STP
Oxidation states
Spectral lines image
Electron configuration (cmt, ref)
Wikidata *
Symbol etymology (11 non-trivial)
* Not used in {{Infobox element}} (2021-12-24)
See also Kategorya:Infobox element data sets (0)

Talababa

  1. "Standard Atomic Weights: Iron" (sa wikang Ingles). CIAAW. 1993.{{cite web}}: CS1 maint: date auto-translated (link)
  2. Prohaska, Thomas; Irrgeher, Johanna; Benefield, Jacqueline; Böhlke, John K.; Chesson, Lesley A.; Coplen, Tyler B.; Ding, Tiping; Dunn, Philip J. H.; Gröning, Manfred; Holden, Norman E.; Meijer, Harro A. J. (2022-05-04). "Standard atomic weights of the elements 2021 (IUPAC Technical Report)". Pure and Applied Chemistry (sa wikang Ingles). doi:10.1515/pac-2019-0603. ISSN 1365-3075.{{cite journal}}: CS1 maint: date auto-translated (link)
  3. 3.0 3.1 3.2 Arblaster, John W. (2018). Selected Values of the Crystallographic Properties of Elements. Materials Park, Ohio: ASM International. ISBN 978-1-62708-155-9.{{cite book}}: CS1 maint: date auto-translated (link)
  4. Ram, R. S.; Bernath, P. F. (2003). "Fourier transform emission spectroscopy of the g4Δ–a4Δ system of FeCl". Journal of Molecular Spectroscopy (sa wikang Ingles). 221 (2): 261. Bibcode:2003JMoSp.221..261R. doi:10.1016/S0022-2852(03)00225-X.{{cite journal}}: CS1 maint: date auto-translated (link)
  5. Demazeau, G.; Buffat, B.; Pouchard, M.; Hagenmuller, P. (1982). "Recent developments in the field of high oxidation states of transition elements in oxides stabilization of six-coordinated Iron(V)". Zeitschrift für anorganische und allgemeine Chemie (sa wikang Ingles). 491: 60–66. doi:10.1002/zaac.19824910109.{{cite journal}}: CS1 maint: date auto-translated (link)
  6. Lu, J.; Jian, J.; Huang, W.; Lin, H.; Li, J; Zhou, M. (2016). "Experimental and theoretical identification of the Fe(VII) oxidation state in FeO4". Physical Chemistry Chemical Physics (sa wikang Ingles). 18 (45): 31125–31131. Bibcode:2016PCCP...1831125L. doi:10.1039/C6CP06753K. PMID 27812577.{{cite journal}}: CS1 maint: date auto-translated (link)
  7. Cardarelli, François (2008). Materials Handbook: A Concise Desktop Reference. London: Springer. p. 65. ISBN 1-84628-668-9.{{cite book}}: CS1 maint: date auto-translated (link)
  8. 8.0 8.1 Kondev, F. G.; Wang, M.; Huang, W. J.; Naimi, S.; Audi, G. (2021). "The NUBASE2020 evaluation of nuclear properties" (PDF). Chinese Physics C. 45 (3): 030001. doi:10.1088/1674-1137/abddae.{{cite journal}}: CS1 maint: date auto-translated (link)