Oxygen, of course, is a gas, polonium a metal, and the in-between elements, sulfur, selenium and tellurium, are all solids that show increasing metallic properties. In fact, tellurium (Te), which ...

First Tellurium Corp’s subsidiary PyroDelta Energy has secured a key agreement with Fenix Advanced Materials to supply high-purity tellurium and other metals for its innovative thermoelectric ...

The high relative abundance of these tellurium isotopes gives tellurium the greater relative atomic mass. The atomic number of tellurium is 52 and the atomic number of iodine is 53, so these ...