Symbol
In
Atomic Number
49
Atomic Mass
114.818
Protons
49
Neutrons
66
Electrons
49
Type
Post-transition Metal
Isotopes
Indium-113, Indium-115
Discovery Year
1863
Discovered By
Ferdinand Reich, Hieronymous Theodor Richter
Group
13
Period
5
Boiling Point
4136°F
Melting Point
156.6°F
Electron Configuration
[Kr] 5s² 4d¹⁰ 5p¹
Density (g/cm³)
7.31
Crystal Structure
Face-centered cubic
Magnetism
Diamagnetic
Abundance in Earth's Crust
0.00049%
Phase at Room Temperature
Solid