ഫലകം:Infobox iron
ദൃശ്യരൂപം
Pure iron chips with a high purity iron cube | |||||||||||||||
ഇരുമ്പ് | |||||||||||||||
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രൂപാന്തരങ്ങൾ | see Allotropes of iron | ||||||||||||||
Appearance | lustrous metallic with a grayish tinge | ||||||||||||||
ഇരുമ്പ് ആവർത്തനപ്പട്ടികയിൽ | |||||||||||||||
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ഗ്രൂപ്പ് | group 8 | ||||||||||||||
പിരീഡ് | period 4 | ||||||||||||||
ബ്ലോക്ക് | d-block | ||||||||||||||
ഇലക്ട്രോൺ വിന്യാസം | [Ar] 3d6 4s2 | ||||||||||||||
Electrons per shell | 2, 8, 14, 2 | ||||||||||||||
Physical properties | |||||||||||||||
Phase at STP | ഖരം | ||||||||||||||
ദ്രവണാങ്കം | 1811 K (1538 °C, 2800 °F) | ||||||||||||||
ക്വഥനാങ്കം | 3134 K (2862 °C, 5182 °F) | ||||||||||||||
Density when liquid (at m.p.) | 6.98 g/cm3 | ||||||||||||||
ദ്രവീകരണ ലീനതാപം | 13.81 kJ/mol | ||||||||||||||
Heat of vaporization | 340 kJ/mol | ||||||||||||||
Molar heat capacity | 25.10 J/(mol·K) | ||||||||||||||
Vapor pressure
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Atomic properties | |||||||||||||||
Oxidation states | −4, −2, −1, +1,[1] +2, +3, +4, +5,[2] +6, +7[3] (an amphoteric oxide) | ||||||||||||||
Electronegativity | Pauling scale: 1.83 | ||||||||||||||
അയോണീകരണ ഊർജം |
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ആറ്റോമിക ആരം | empirical: 140 pm calculated: 156 pm | ||||||||||||||
കൊവാലന്റ് റേഡിയസ് | 125 pm | ||||||||||||||
Spectral lines of ഇരുമ്പ് | |||||||||||||||
Other properties | |||||||||||||||
Natural occurrence | primordial | ||||||||||||||
ക്രിസ്റ്റൽ ഘടന | 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) | ||||||||||||||
താപചാലകത | 80.4 W/(m⋅K) | ||||||||||||||
Electrical resistivity | 96.1 n Ω⋅m (at 20 °C) | ||||||||||||||
കാന്തികത | ferromagnetic | ||||||||||||||
Young's modulus | 211 GPa | ||||||||||||||
Shear modulus | 82 GPa | ||||||||||||||
ബൾക്ക് മോഡുലസ് | 170 GPa | ||||||||||||||
Poisson ratio | 0.29 | ||||||||||||||
Mohs hardness | 4.0 | ||||||||||||||
Vickers hardness | 608 MPa | ||||||||||||||
Brinell hardness | 490 MPa | ||||||||||||||
സി.എ.എസ് നമ്പർ | 7439-89-6 | ||||||||||||||
Symbol | "Fe": from Latin ferrum | ||||||||||||||
Isotopes of ഇരുമ്പ് | |||||||||||||||
Template:infobox ഇരുമ്പ് isotopes does not exist | |||||||||||||||
- ↑ 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.
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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.