Template:Infobox indium

Indium, ₄₉In
	Template:Infobox element/symbol-to-top-image-caption
General properties
Pronunciation	Template:Infobox element/pronunciation
Appearance	silvery lustrous gray
Standard atomic weight (Ar, standard)	Template:Infobox element/standard atomic weight
Mass number	Template:Infobox element/symbol-to-most-stable-isotope (most stable isotope)
Indium in the periodic table
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Atomic number (Z)	49
Group	Template:Infobox element/group
Period	period 5
Block	p-block
Element category	Template:Infobox element/category format
Electron configuration	[Kr] 4d10 5s2 5p1
Electrons per shell	2, 8, 18, 18, 3
Physical properties
Phase at STP	solid
Melting point	429.7485 K (156.5985 °C, 313.8773 °F)
Boiling point	2345 K (2072 °C, 3762 °F)
Density (near r.t.)	7.31 g/cm3
when liquid (at m.p.)	7.02 g/cm3
Triple point	429.7445 K, ~1 kPa
Heat of fusion	3.281 kJ/mol
[[Enthalpy of vaporization\|Heat of Template:Engvar]]	231.8 kJ/mol
Molar heat capacity	26.74 J/(mol·K)
	[[Vapor pressure\|Template:Engvar pressure]] Template:Infobox element/vapor pressure table
Atomic properties
Oxidation states	Template:Infobox element/symbol-to-oxidation-state
Electronegativity	Pauling scale: 1.78
[[Ionization energy\|Template:Engvar energies]]	1st: 558.3 kJ/mol ; 2nd: 1820.7 kJ/mol ; 3rd: 2704 kJ/mol ; ;
Atomic radius	empirical: 167 pm
Covalent radius	142±5 pm
Van der Waals radius	193 pm
	Template:Infobox element/spectral lines
Other properties
Crystal structure	Template:Infobox element/crystal structure Template:Infobox element/crystal structure
Speed of sound thin rod	1215 m/s (at 20 °C)
Thermal expansion	32.1 µm/(m·K) (at 25 °C)
Thermal conductivity	81.8 W/(m·K)
Electrical resistivity	83.7 nΩ·m (at 20 °C)
Magnetic ordering	diamagnetic
Magnetic susceptibility	−64.0·10−6 cm3/mol (298 K)
Young's modulus	11 GPa
Mohs hardness	1.2
Brinell hardness	8.8–10.0 MPa
CAS Number	7440-74-6
History
Discovery	Ferdinand Reich and Hieronymous Theodor Richter (1863)
First isolation	Hieronymous Theodor Richter (1864)
Main isotopes of indium
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Template:Infobox element/element navigation Template:Template reference list Expression error: Unrecognized word "template".

↑ Mangum, B. W. (1989). "Determination of the Indium Freezing-point and Triple-point Temperatures". Metrologia. 26 (4): 211. Bibcode:1989Metro..26..211M. doi:10.1088/0026-1394/26/4/001.
↑ Lide, D. R., ed. (2005). "Magnetic susceptibility of the elements and inorganic compounds". CRC Handbook of Chemistry and Physics (PDF) (86th ed.). Boca Raton (FL): CRC Press. ISBN 0-8493-0486-5.
↑ Weast, Robert (1984). CRC, Handbook of Chemistry and Physics. Boca Raton, Florida: Chemical Rubber Company Publishing. pp. E110. ISBN 0-8493-0464-4.
↑ Guloy, A. M.; Corbett, J. D. (1996). "Synthesis, Structure, and Bonding of Two Lanthanum Indium Germanides with Novel Structures and Properties". Inorganic Chemistry. 35 (9): 2616–22. doi:10.1021/ic951378e.

[1] Mangum, B. W. (1989). "Determination of the Indium Freezing-point and Triple-point Temperatures". Metrologia. 26 (4): 211. Bibcode:1989Metro..26..211M. doi:10.1088/0026-1394/26/4/001.

[2] Lide, D. R., ed. (2005). "Magnetic susceptibility of the elements and inorganic compounds". CRC Handbook of Chemistry and Physics (PDF) (86th ed.). Boca Raton (FL): CRC Press. ISBN 0-8493-0486-5.

[3] Weast, Robert (1984). CRC, Handbook of Chemistry and Physics. Boca Raton, Florida: Chemical Rubber Company Publishing. pp. E110. ISBN 0-8493-0464-4.

[4] Guloy, A. M.; Corbett, J. D. (1996). "Synthesis, Structure, and Bonding of Two Lanthanum Indium Germanides with Novel Structures and Properties". Inorganic Chemistry. 35 (9): 2616–22. doi:10.1021/ic951378e.

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[2]

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Template:Infobox indium

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