52 Te 127.603

Tellurium

METALLOID

Phase: Solid

Discovered: Franz-Joseph Müller von Reichenstein

Block: P

Summary

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.

Source: Wikipedia

Physical Properties

Atomic Mass 127.603 u

Density 6.24 g/cm³

Melting Point 722.66 K

Boiling Point 1261 K

Molar Heat 25.73 J/(mol·K)

Electron Affinity 190.161 kJ/mol

Ionization Energies

1^st: 869.3 kJ/mol

2^nd: 1790 kJ/mol

3^rd: 2698 kJ/mol

4^th: 3610 kJ/mol

5^th: 5668 kJ/mol

6^th: 6820 kJ/mol

7^th: 13200 kJ/mol