ଛାଞ୍ଚ:Infobox iron

Iron,  ₂₆Fe

Spectral lines of iron
ସାଧାରଣ ଗୁଣ
ନାମ, ପ୍ରତୀକ	iron, Fe
Appearance	lustrous metallic with a grayish tinge
ଉଚ୍ଚାରଣ	/ˈaɪ.ərn/
Iron in the periodic table
- ↑ Fe ↓ Ru manganese ← iron → cobalt
ପରମାଣୁ କ୍ରମାଙ୍କ (Z)	26
ଶ୍ରେଣୀ, ବ୍ଳକ	group 8, d-block
ପର୍ଯ୍ୟାୟ	period 4
ମୌଳିକ ପ୍ରକାର	transition metal
ମାନକ ପରମାଣବିକ ଓଜନ (±) (Ar)	55.845(2)
ଇଲେକ୍‌ଟ୍ରୋନ୍ ବିନ୍ୟାସ	[Ar] 3d6 4s2
per shell	2, 8, 14, 2
ଭୌତିକ ଗୁଣ
ଅବସ୍ଥା	solid
ଗଳନାଙ୍କ	1811 K ​(1538 °C, ​2800 °F)
ସ୍ଫୁଟନାଙ୍କ	3134 K ​(2862 °C, ​5182 °F)
Density near r.t.	7.874 g/cm3
when liquid, at m.p.	6.98 g/cm3
Heat of fusion	13.81 kJ/mol
Heat of	340 kJ/mol
Molar heat capacity	25.10 J/(mol·K)
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, 4, 3, 2, 1, -1, -2 ​amphoteric oxide
Electronegativity	Pauling scale: 1.83
energies	(more)
Atomic radius	empirical: 126 pm
Covalent radius	132±3 (low spin), 152±6 (high spin) pm
Miscellanea
Crystal structure	​body-centered cubic (bcc) a=286.65 pm;
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
Vickers hardness	608 MPa
Brinell hardness	490 MPa
CAS Number	7439-89-6
ଇତିହାସ
ଆବିଷ୍କାର	before 5000 BC
Most stable isotopes of iron
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% 56Fe is stable with 30 neutrons 57Fe 2.2% 57Fe is stable with 31 neutrons 58Fe 0.28% 58Fe is stable with 32 neutrons 59Fe syn 44.503 d β− 1.565 59Co 60Fe syn 2.6×106 y β− 3.978 60Co

References

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