# Xenon

## W.C. Mepham High School, Belmore, New York, U.S.A.

Xenon: Xenon was discovered on July 12, 1898 by William Ramsay and Morris Travers. Xenon is used as an anesthetic, for ion thrusters in spaceships as a propellant and for photographic flashes. It is a trace gas and rare in Earth's atmosphere. If the concentration is too high, xenon can be toxic and potentially fatal. I thought the most interesting fact about xenon is that it is produced during supernova explosions. I drew a picture of a supernova with photoshop. The colors are blue and lavender because xenon is known for its azure glow. The letters and numbers are supposed to look like a gas-filled tube of glowing xenon.

Original artwork by Bonnie Kaprat, Teacher: Josephine Parlagreco, W.C. Mepham High School, Bellmore,  New York, U.S.A.

### Atomic properties*

Name:
Xenon
Symbol:
Xe
Atomic number:
54
Atomic mass:
131.3 amu
Melting point:
-111.74°C
Boiling point:
-108.09°C
Density:
0.005887 g/cm3
Electronegativity:
2.6
# of Isotopes:
9
State:
Gas
Colour:
Colourless±
Classification:
Non-metallic±

* Haynes, W. M. (2011). CRC Handbook of Chemistry and Physics, 91st edition: http://www.hbcponline.com/ Retrieved April 7, 2011

± Winter, M. (2010). Home of the Periodic Table. Retrieved April 8, 2011, from Web Elements: http://www.webelements.com/