In
Indium
Z 49 114.818 g/molPost-Transition Metal
Nucleus
49 Protons
66 Neutrons
49 Electrons (3 Valence)
Shell distribution: K2 • L8 • M18 • N18 • O3 • P0 • Q0
Electron Configuration
Energy
7p
6d
5f
7s
6p
5d
4f
6s
5p
4d
5s
4p
3d
4s
3p
3s
2p
2s
1s
[Kr]4d105s25p1
Radii
Empirical
155 pm1.55 Å
Calculated
156 pm1.56 Å
Covalent
142±5 pm1.42±0.05 Å
van Der Waals
193 pm1.93 Å
Oxidation States
CommonRare
-5
-2
-1
0
0
+1
+2
+3
Crystal Structure
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Tetragonal