Template:Infobox iron

विकिपिडिया नं
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| colspan=2 style="text-align: center" | Main article: Isotopes of नँ
नँ
26Fe
-

Fe

Ru
म्यान्गानिजनँकोबाल्त
रुप
lustrous metallic with a grayish tinge
A rough wedge of silvery metal

Spectral lines of iron
साधारण गुण
नां, चिं, ल्या नँ, Fe, 26
उच्चारण /ˈ.ərn/
धातुया वर्ग त्रान्जिसन मेतल
ग्रुप, पिरियद, ब्लक 84, d
Standard atomic weight 55.845(2)
Electron configuration [Ar] 3d6 4s2
2, 8, 14, 2
History
Discovery before 5000 BC
Physical properties
Phase solid
Density (near r.t.) 7.874 g·cm−3
Liquid density at m.p. 6.98 g·cm−3
Melting point 1811 K, 1538 °C, 2800 °F
Boiling point 3134 K, 2862 °C, 5182 °F
Heat of fusion 13.81 kJ·mol−1
Heat of vaporization 340 kJ·mol−1
Molar heat capacity 25.10 J·mol−1·K−1
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 6, 5,[१] 4, 3, 2, 1[२], -1, -2
(amphoteric oxide)
Electronegativity 1.83 (Pauling scale)
Ionization energies
(more)
1st: 762.5 kJ·mol−1
2nd: 1561.9 kJ·mol−1
3rd: 2957 kJ·mol−1
Atomic radius 126 pm
Covalent radius 132±3 (low spin), 152±6 (high spin) pm
Miscellanea
Crystal structure body-centered cubic
नँ has a body-centered cubic crystal structure

a=286.65 pm;
face-centered cubic
नँ has a face-centered cubic crystal structure

between 1185–1667 K
Magnetic ordering ferromagnetic
1043 K
Electrical resistivity (20 °C) 96.1 nΩ·m
Thermal conductivity 80.4 W·m−1·K−1
Thermal expansion (25 °C) 11.8 µm·m−1·K−1
Speed of sound (thin rod) (r.t.) (electrolytic)
5120 m·s−1
Young's modulus 211 GPa
Shear modulus 82 GPa
Bulk modulus 170 GPa
Poisson ratio 0.29
Mohs hardness 4
Vickers hardness 608 MPa
Brinell hardness 490 MPa
CAS registry number 7439-89-6
Most stable isotopes
iso NA half-life DM DE (MeV) DP
54Fe 5.8% >3.1×1022 y β+β+ 0.6800 54Cr
55Fe syn 2.73 y ε 0.231 55Mn
56Fe 91.72% Fe एलेमेन्ट 30 न्युट्रोन नाप स्टेबल जु
57Fe 2.2% Fe एलेमेन्ट 31 न्युट्रोन नाप स्टेबल जु
58Fe 0.28% Fe एलेमेन्ट 32 न्युट्रोन नाप स्टेबल जु
59Fe syn 44.503 d β 1.565 59Co
60Fe syn 2.6×106 y β 3.978 60Co
· r

References

  1. Demazeau, G. (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. 
  2. Ram, R. S. and Bernath, P. F. (2003). "Fourier transform emission spectroscopy of the g4Δ-a4Δ system of FeCl". Journal of Molecular Spectroscopy 221 (2). DOI:10.1016/S0022-2852(03)00225-X.