Atomic Number: | 52 |
Element Symbol: | Te |
Element Name: | Tellurium |
Atomic Weight: | 127.60 |
Group Number: | 16 |
Group Name: | Chalcogen |
Period Number: | 5 |
Block: | p-block |
Ground State Configuration: | [Kr] 4d10 5s2 5p4 |
Ground State Level: | 3P2 |
Standard State: | Solid |
Common Valences: | 2,4,6 |
Bond Length: | 286.4 |
Atomic Radius Empirical: | 140 |
Atomic Radius Calculated: | 123 |
Covalent Radius Empirical: | 135 |
Vander Waals Radius: | 206 |
Electron Affinity: | 190.2 |
First Ionization Energy: | 869.3 |
Pauling Electronegativity: | 2.1 |
Sanderson Electronegativity: | 2.62 |
Allred Rochow Electronegativity: | 2.01 |
Mulliken Jaffe Electronegativity: | 2.41 |
Allen Electronegativity: | 2.158 |
Density Of Solid: | 6240 |
Molar Volume: | 20.46 |
Velocity Of Sound: | 2610 |
Youngs Modulus: | 43 |
Rigidity Modulus: | 16 |
Bulk Modulus: | 65 |
Mineral Hardness: | 2.25 |
Brinell Hardness: | 180 |
Electrical Resistivity: | about 10000 |
Reflectivity: | 50 |
Refractive Index: | 1.000991 |
Melting Point: | 449.51 |
Boiling Point: | 988 |
Thermal Conductivity: | 3 |
Enthalpy Of Fusion: | 17.5 |
Enthalpy Of Vaporization: | 48 |
Enthalpy Of Atmization: | 197 |
Most Common Oxidation Numbers: | 6,4,2,-2 |
Color: | Silvery lustrous grey |
Classification: | Semi-metallic |
Discovered By: | Franz Joseph Muller von Reichstein |
Discovered At: | Romania |
Discovered When: | 1783 |
Origin Of Name: | From the Latin word tellus meaning earth |
Calculate the molecular weight of Tellurium or molecular weight Te.
Also see the full list of chemical elements and atomic weights.