Te
Tellurium
Z 52 127.6 g/molMetalloid
Nucleus
52 Protons
76 Neutrons
52 Electrons (6 Valence)
Shell distribution: K2 • L8 • M18 • N18 • O6 • 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]4d105s25p4
Radii
Empirical
140 pm1.4 Å
Calculated
123 pm1.23 Å
Covalent
138±4 pm1.38±0.04 Å
van Der Waals
206 pm2.06 Å
Oxidation States
CommonRare
-2
-1
0
0
+1
+2
+3
+4
+5
+6
Crystal Structure
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Hexagonal