Tellurium

By: Riane
**Atomic Number:** 52
 * 1) [[image:Tellurium.jpg align="right"]]
 * Protons:** 52

**Electrons:** 52 **Discovery:** Tellurium was discovered by Franz Joseph Müller von Reichenstein, a Romanian mining official, in 1782. He had an interest in chemistry and extracted a new metal from an ore of g old, and he realized he had found a metal previously unknown. Reichenstein's work was forgotten until 1798 when Martin Heinrich Klaproth, a German chemist, mentioned the substance in a paper. Klaproth named the new element tellurium but gave full credit for its discovery to Reichenstein. **Name:** It was named after the Latin word Tellus meaning earth because it was extracted from the earth.
 * Neutrons:** 76
 * Average Atomic Mass:** 127.6 amu
 * Isotopes:** Te-120, Te-122, Te-123, Te-124, Te-125, Te-126, Te-128, Te-130
 * Uses:** It is used in alloys with cast iron, copper, and stainless steel, as an addition to lead to prevent corrosion, in ceramics, and in tinting glass.

**Interesting Facts**: Humans exposed to as little as 0.01 mg m-3 in air, or less, develop "tellurium breath", which has a garlic-like odor.

**Picture and Video:** media type="youtube" key="5ChFbVu4Mpk" height="344" width="425"
 * Sources**
 * Picture: []
 * Video: []
 * [| http://www.webelements.com/tellurium/]
 * []
 * [|http://education.jlab.org/itselemental/ele052.htm]