Argon


 * Element Name:** Argon


 * Element Symbol:** Ar


 * Atomic Mass:** 4


 * Atomic Number:** 18


 * Protons:** 18
 * Electrons:** 18


 * Discovery:** It was discovered by Henry Cavendish in 1785.


 * How It Was Named:** It was named from the Greek word apyov meaning "The inactive one."


 * State of Matter:** Gas


 * Melting Point:** -189.35 °C


 * Boiling Point:** -185.85 °C


 * Characteristics:** Colorless, odorless, nontoxic as a solid, liquid, and has. Also is tasteless and glows blue.


 * Use of Element:** For glowing blue light.


 * Interesting Facts:** gloveboxes are contained with argon. Most glowing blue lights around the world is filled with argon.

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