- Atomic Radius (Å)
Indium is a chemical element with symbol In and atomic number 49. It is a post-transition metallic element that is rare in Earth's crust. The metal is very soft, malleable and easily fusible, with a melting point higher than sodium, but lower than lithium or tin.
49
Atomic Number
114.82 u
Atomic Mass
429.91 K
Melting Point
2345 K
Boiling Point
7.31 g/cm³
Density
2 Å
Atomic Radius
1.42 Å
Covalent Radius
1.78
Electronegativity
5.79 eV
First Ionization Energy
37.04
Electron Affinity
5
Number of Shells
3
Electron Valency
2, 8, 18, 18, 3
Electron Shell Occupations
0.23 J/g
Specific Heat