Bessè

Iron, ₂₆Fe
Iron
Pronunciation	/ˈaɪərn/ ( Pangèḍing)
Allotropes	see Allotropes of iron
Appearance	lustrous metallic with a grayish tinge
Standard atomic weight Ar°(Fe)
	Cèṭa'an:Infobox element/standard atomic weight format
Mass number	Fe:
Iron in the periodic table
	manganese ← iron → cobalt
Atomic number (Z)	26
Group	group 8
Period	period 4
Block	data-sort-value="3026" \|#99ccff
Electron configuration	[Ar] 3d6 4s2
Electrons per shell	2, 8, 14, 2
Physical properties
Phase at STP	Solid
Melting point	1811 K (1538 °C, 2800 °F)
Boiling point	3134 K (2861 °C, 5182 °F)
Density (at 20° C)	7.874 g/cm3
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)
	Vapor pressure Cèṭa'an:Infobox element/vapor pressure table
Atomic properties
Oxidation states	−4, −2, −1, 0, +1, +2, +3, +4, +5, +6, +7 (an amphoteric oxide)
Electronegativity	Pauling scale: 1.83
Ionization energies	1st: 762.5 kJ/mol ; 2nd: 1561.9 kJ/mol ; 3rd: 2957 kJ/mol ; (more) ;
Atomic radius	empirical: 126 pm
Covalent radius	Low spin: 132±3 pm; High spin: 152±6 pm
Van der Waals radius	194 pm
	Spectral lines of iron
Other properties
Natural occurrence	Fe: Primordial-wl>Primordial
Crystal structure	α-Fe: Cèṭa'an:Infobox element/crystal structure (cI2)
Lattice constant	Cèṭa'an:Infobox element/crystal structurea = 286.65 pm (at 20 °C)
Crystal structure	γ-Fe (912–1394 °C): Cèṭa'an:Infobox element/crystal structure (cF4)
Lattice constant	Cèṭa'an:Infobox element/crystal structurea = 364.68 pm (at 916 °C)
Thermal expansion	12.07×10−6/K (at 20 °C)
Thermal conductivity	80.4 W/(m⋅K)
Electrical resistivity	96.1 nΩ⋅m (at 20 °C)
Curie point	1043 K
Magnetic ordering	ferromagnetic
Young's modulus	211 GPa
Shear modulus	82 GPa
Bulk modulus	170 GPa
Speed of sound thin rod	5120 m/s (at r.t.) (electrolytic)
Poisson ratio	0.29
Mohs hardness	4
Vickers hardness	608 MPa
Brinell hardness	200–1180 MPa
CAS Number	7439-89-6
History
Naming	probably from a PIE root meaning 'blood', for the color of its oxides
Discovery	before 5000 BC
Symbol	"Fe": from Latin ferrum
Isotopes of iron t; b;
	Template:infobox iron isotopes does not exist
	Cèṭa'an:Category-inline; tèngghu; parâmbhâg; beccè'; \| references

Bessè arobâ arkan kimiya; sè anḍi' simbol kimia Fe (Pènangkan Latin ferrum 'bessè') bân nomor atom 26. Arèya sabuwâ logam sè kalebbhu è jhijhir transisis partama bân ghimpo' 8 ḍâri tabèl pèriodik. Mètorot massa, arèya arobâaghi arkan sè palèng bâttra è Bhumi, mabujud sabâgiyân rajâ inti lowar bân inti ḍâlem Bhumi. Rèya arobâaghi arkan kaempa' sè palèng èbbhâ' è kerak Bhumi, sè sadhuman rajâ ètompo' bi' mètèorit ḍâlem dhângka' logamma.

Sombher

1 2 3 Arblaster, John W. (2018). Selected Values of the Crystallographic Properties of Elements. Materials Park, Ohio: ASM International. ISBN 978-1-62708-155-9.
↑ 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.
↑ Cardarelli, François (2008). Materials Handbook: A Concise Desktop Reference. London: Springer. p. 65. ISBN 1-84628-668-9.

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[Arblaster_2018-1] 1 2 3 Arblaster, John W. (2018). Selected Values of the Crystallographic Properties of Elements. Materials Park, Ohio: ASM International. ISBN 978-1-62708-155-9.

[2] 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.

[3] 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.

[4] 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.

[5] Cardarelli, François (2008). Materials Handbook: A Concise Desktop Reference. London: Springer. p. 65. ISBN 1-84628-668-9.

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