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HOME > Protocols > Reference Material > Periodic Table > Indium

Indium

Atomic Number: 49

Name: Indium

Atomic symbol: In

Atomic Weight: 114.82

Electron affinity: -30 kJ/mol

Electron configuration: 1s22s22p63s23p63d104s24p64d105s25p1

Ionization energies: 558 kJ/mol; 1,821 kJ/mol; 2,704 kJ/mol; 5,200 kJ/mol

Pauling electronegativity: 1.7

Melting Point: 157oC

Boiling Point: 2080oC

Density: 7.30 g/cm3

Standard potential (volts), M+ + e- ---> M: -0.34

Covalent radius: 1.50 angstroms

Ionic radius: 0.81 angstroms (+3)

Common oxidation states in compounds: +1, +3

Previous: Atomic Number 48 - Cadmium


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