49
In
indium
114.82

General properties

Group
group 13
Period
period 5
Category
post-transition metals
Standard atomic weight
114.818(1)
Melting point
429.7485 K (156.5985 °C)
Boiling point
2345 K (2072 °C)
Phase at STP
solid

Additional properties

Block
p-block
Electron configuration
[Kr] 4d¹⁰ 5s² 5p¹
Electrons per shell
2, 8, 18, 18, 3
Electronegativity
1.78
Density
7.31 g/cm³
Oxidation states
−5, −2, −1, +1, +2, +3 (an amphoteric oxide)
CAS Number
7440-74-6