ഫലകം:Infobox iron

ഇരുമ്പ്, ₀₀Fe
	Pure iron chips with a high purity iron cube
ഇരുമ്പ്
Pronunciation	/ˈaɪərn/
Allotropes	see Allotropes of iron
Appearance	lustrous metallic ; with a grayish tinge
Standard atomic weight Ar°(Fe)
	55.845±0.002; 55.845±0.002 (abridged);
ഇരുമ്പ് in the periodic table
	മാംഗനീസ് ← ഇരുമ്പ് → കൊബാൾട്ട്
Group	group 8
Period	period 4
Block	d-block
Electron configuration	[Ar] 3d6 4s2
Electrons per shell	2, 8, 14, 2
Physical properties
Phase at STP	ഖരം
Melting point	1811 K (1538 °C, 2800 °F)
Boiling point	3134 K (2862 °C, 5182 °F)
Density when liquid (at m.p.)	6.98 g/cm3
Heat of fusion	13.81 kJ/mol
Heat of vaporization	340 kJ/mol
Molar heat capacity	25.10 J/(mol·K)
Atomic properties
Oxidation states	common: +2, +3; −2, −1, 0, +1, +4, +5, +6, +7
Electronegativity	Pauling scale: 1.83
Ionization energies	(more);
Atomic radius	empirical: 140 pm ; calculated: 156 pm
Covalent radius	125 pm
	Spectral lines of ഇരുമ്പ്
Other properties
Natural occurrence	primordial
Crystal structure	body-centered cubic; a=286.65 pm;; face-centered cubic; between 1185–1667 K body-centered cubic; a=286.65 pm;; face-centered cubic; between 1185–1667 K
Thermal expansion	11.8 µm/(m⋅K) (at 25 °C)
Thermal conductivity	80.4 W/(m⋅K)
Electrical resistivity	96.1 n Ω⋅m (at 20 °C)
Magnetic ordering	ferromagnetic
Young's modulus	211 GPa
Shear modulus	82 GPa
Bulk modulus	170 GPa
Speed of sound thin rod	(electrolytic); 5120 m/s (at r.t.)
Poisson ratio	0.29
Mohs hardness	4.0
Vickers hardness	608 MPa
Brinell hardness	490 MPa
CAS Number	7439-89-6
Symbol	"Fe": from Latin ferrum
Isotopes of ഇരുമ്പ് ക; തി;
	Template:infobox ഇരുമ്പ് isotopes does not exist
	വർഗ്ഗം: ഇരുമ്പ്; view; talk; edit; \| references

↑ "Standard Atomic Weights: Iron". CIAAW. 1993.
↑ 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 (in ഇംഗ്ലീഷ്). doi:10.1515/pac-2019-0603. ISSN 1365-3075.
↑ ^3.0 ^3.1 ^3.2 ^3.3 ^3.4 Greenwood, Norman N.; Earnshaw, Alan (1997). Chemistry of the Elements (2nd ed.). Butterworth-Heinemann. p. 28. ISBN 978-0-08-037941-8.
↑ Ram, R. S.; Bernath, P. F. (2003). "Fourier transform emission spectroscopy of the g⁴Δ–a⁴Δ system of FeCl". Journal of Molecular Spectroscopy. 221 (2): 261. Bibcode:2003JMoSp.221..261R. doi:10.1016/S0022-2852(03)00225-X.
↑ 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. 491: 60–66. doi:10.1002/zaac.19824910109.
↑ 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. 18 (45): 31125–31131. Bibcode:2016PCCP...1831125L. doi:10.1039/C6CP06753K. PMID 27812577.

[1] "Standard Atomic Weights: Iron". CIAAW. 1993.

[CIAAW2021-2] 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 (in ഇംഗ്ലീഷ്). doi:10.1515/pac-2019-0603. ISSN 1365-3075.

[GE28-3] 3.0 ^3.1 ^3.2 ^3.3 ^3.4 Greenwood, Norman N.; Earnshaw, Alan (1997). Chemistry of the Elements (2nd ed.). Butterworth-Heinemann. p. 28. ISBN 978-0-08-037941-8.

[4] Ram, R. S.; Bernath, P. F. (2003). "Fourier transform emission spectroscopy of the g⁴Δ–a⁴Δ system of FeCl". Journal of Molecular Spectroscopy. 221 (2): 261. Bibcode:2003JMoSp.221..261R. doi:10.1016/S0022-2852(03)00225-X.

[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. 491: 60–66. doi:10.1002/zaac.19824910109.

[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. 18 (45): 31125–31131. Bibcode:2016PCCP...1831125L. doi:10.1039/C6CP06753K. PMID 27812577.

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