Thulium


 * Element Name:** Thulium


 * Element Symbol:** Tm


 * Atomic Mass:** 169[[image:Thulium.png width="216" height="288" align="right"]]


 * Atomic Number:** 69


 * Protons:** 69


 * Electrons:** 69


 * Discovery:** It was found by Per Teodor Cleve in 1879


 * How it was named:** Cleve named an oxide thulia and it's element (thulium) after Thule, Scandonavia


 * State of Matter:** Solid


 * Melting Point:** 1,545°C


 * Boiling Point:** 1,950°C


 * Characteristics:** It's an easily workable metal, it's a bright silvery gray and the metal is soft and malleable.


 * Uses:** Thulium is used in portable x-ray devices and in solid state lasers.


 * Interesting Facts:** It's a rare metal that is not found naturally on earth and its stable in air, but should be protected from moisture.

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