ഫലകം:Infobox iron

ഇരുമ്പ്, ₀₀Fe
	Pure iron chips with a high purity iron cube
ഇരുമ്പ്
Allotropes	see Allotropes of iron
Appearance	lustrous metallic ; with a grayish tinge
Standard atomic weight Ar°(Fe)
	ഫലകം:Infobox element/standard atomic weight format
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	−4, −2, −1, +1, +2, +3, +4, +5, +6, +7 (an amphoteric oxide)
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
Speed of sound thin rod	(electrolytic); 5120 m/s (at r.t.)
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
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

↑ Ram, R. S.; Bernath, P. F. (2003). "Fourier transform emission spectroscopy of the g⁴Δ-a⁴Δ system of FeCl" (PDF). Journal of Molecular Spectroscopy. 221 (2): 261. Bibcode:2003JMoSp.221..261R. doi:10.1016/S0022-2852(03)00225-X. {{cite journal}}: Unknown parameter |lastauthoramp= ignored (|name-list-style= suggested) (help)
↑ 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. 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: 31125. Bibcode:2016PCCP...1831125L. doi:10.1039/C6CP06753K.

[1] Ram, R. S.; Bernath, P. F. (2003). "Fourier transform emission spectroscopy of the g⁴Δ-a⁴Δ system of FeCl" (PDF). Journal of Molecular Spectroscopy. 221 (2): 261. Bibcode:2003JMoSp.221..261R. doi:10.1016/S0022-2852(03)00225-X. {{cite journal}}: Unknown parameter |lastauthoramp= ignored (|name-list-style= suggested) (help)

[2] 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. doi:10.1002/zaac.19824910109.

[3] 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: 31125. Bibcode:2016PCCP...1831125L. doi:10.1039/C6CP06753K.

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