49
114.82 u
In
Indium
Post Transition Metal
Atomic Structure
Physical State
Group
13
Period
5
Block
p
Electron Configuration
[Kr] 4d¹⁰ 5s² 5p¹
Physical Properties
Atomic Mass:
114.82 u
Electronegativity:
1.78
Atomic Radius:
193 pm
Ionization Energy:
5.786 eV
Density:
7.31 g/cm³
Melting Point:
429.75 K
Boiling Point:
2345 K
Historical Information
Discovered By:
Ferdinand Reich
Year Discovered:
1863