Astatine

= Astatine= ==
 * Atomic Number:** 85


 * Protons:** 85


 * Electrons:** 85


 * Neutrons:** 125


 * Average Atomic Mass:** 210


 * Isotopes:** There are no naturally occurring isotopes of Astatine. However At-207, At-208, At-209, At-210, and At-211 have been created.


 * Discovery:** Astatine was discovered in California by Dale Corson and MacKenzie Segre in 1940.


 * Name:** The name Astatine comes from the Greek word "astatos" which means unstable.


 * Uses:** There are no uses.


 * Interesting Facts**: Astatine is not found in nature and must be made in a nuclear reactor. It is an unstable element that breaks apart easily

media type="youtube" key="sSL7EwdlLlE" height="344" width="425"
 * Video:**

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 * Sources**
 * Photo: No photo was used because Astatine is so unstable it can't be photographed or used in a product..
 * Video: [|Astatine on the Periodic Table of Videos on YouTube]
 * [|Astatine on WebElements]
 * [|Astatine Isotopes on WebElements]
 * [|History of Astatine on WebElements]