Home 49 In Indium back to the periodic table

Atomic number   49
Symbol   In
Atomic weight   114.82
Density [g/cm3]   7.31
Melting point [°C]   156.6
Boiling point [°C]   2080
1st Ionization energy [eV]   5.786
Electronic configuration   [Kr] 4d10 5s2 5p
Oxidation number (most stable)   3
Atomic radius [pm]   162.6
Ionic radius [pm]   81 (3+)
Abundance in crustal rocks [ppm]   0.24
Origin of the name   after the colour designation indigo because of its blue spectral lines in its atomic spectrum
Discovery   1863 by Reich and Richter
Uses   as addition to babbit alloys as well as for applications of semiconductors.

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© 2004 Büro für angewandte Mineralogie · Dr. Stephan Rudolph · D-47918 Tönisvorst
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