Xenon

= Xenon=


 * Atomic Number:** 54


 * Protons:** 54


 * Electrons:** 54


 * Neutrons:** 77 


 * Average Atomic Mass:**  131.293 amu


 * Isotopes:** Xe-122, Xe-123, Xe-124, Xe-125, Xe-126, Xe-127, Xe-128, Xe-129, Xe-130, Xe-131, Xe-132, Xe-133, Xe-134, Xe-135, Xe-136


 * Discovery:** Xenon was discovered by Sir William Ramsay and Morris W. Travers in England in 1898
 * Name:** The name Xenon comes from the Greek word "xenos" meaning "stranger." This name was chosen because Xenon was discovered as extra, unknown substance that appeared when Neon and Krypton were first found.


 * Uses:** Xenon is used in certain types of bright, powerful lamps and flashbulbs. It is also used for medical imaging.


 * Interesting Facts**: Xenon is a dense, heavy, colorless gas and balloons full of Xenon will sink. Everyone thought Xenon was inert (didn't react) because it was a Noble Gas. However, in the 1960s Neil Bartlett discovered it would react

media type="youtube" key="Ejoct_6pQ74" height="344" width="425"
 * Video:**


 * Sources**
 * [|Xenon on WebElements]
 * [|History of Xenon on WebElements]
 * [|Xenon Isotopes on WebElements]
 * [|Xenon on the Periodic Table of Videos]
 * Photo: [|DBS by sjoerdtenkate on Flickr]