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52 - Tellurium metalloid

Discovered by Franz von Reichenstein in 1782

Tellurium

Tellurium is a chemical element with symbol Te and atomic number 52. It is a brittle, mildly toxic, rare, silver-white metalloid. Tellurium is chemically related to selenium and sulfur.
Shell Electrons Orbitals
1 2 2 in 1s
2 8 2 in 2s + 6 in 2p
3 18 2 in 3s + 6 in 3p + 10 in 3d
4 18 2 in 4s + 6 in 4p + 10 in 4d
5 6 2 in 5s + 4 in 5p
TelluriumTe Electron 1 Electron 2 Electron 1 Electron 2 Electron 3 Electron 4 Electron 5 Electron 6 Electron 7 Electron 8 Electron 1 Electron 2 Electron 3 Electron 4 Electron 5 Electron 6 Electron 7 Electron 8 Electron 9 Electron 10 Electron 11 Electron 12 Electron 13 Electron 14 Electron 15 Electron 16 Electron 17 Electron 18 Electron 1 Electron 2 Electron 3 Electron 4 Electron 5 Electron 6 Electron 7 Electron 8 Electron 9 Electron 10 Electron 11 Electron 12 Electron 13 Electron 14 Electron 15 Electron 16 Electron 17 Electron 18 Electron 1 Electron 2 Electron 3 Electron 4 Electron 5 Electron 6
127.6  u Atomic Mass
1.4  Å Atomic Radius
1261  K Boiling Point
1.38  Å Covalent Radius
6.24  g/cm³ Density
190.16 Electron Affinity
2.1 Electronegativity
9.01  eV First Ionization Energy
722.8  K Melting Point
5 Number of Shells
6 Electron Valency
52 Atomic Number
2, 8, 18, 18, 6 Electron Shell Occupations
0.2  J/(g K) Specific Heat