Tellurium

Tellurium is a chemical element (atomic number 52). Its primary use is in alloys, where it makes other metals easier to work on a machine. 
Tellurium is mildly toxic. One of the distinctive symptoms of tellurium poisoning is the smell of garlic on the breath from a compound formed when tellurium reacts with other substances in the body. 
Tellurium at WikipediaCategory:Chemistry