Helium

= Analiese Jones =

discovered this || interwoven with the discovery of natural stars, ||
 * Name of Element || Helium ||
 * Element Symbol || He ||
 * Atomic Number || 2 ||
 * Atomic Mass || 4 ||
 * Number of Protons || 2 protons ||
 * Number of Neutrons || 2 Neutrons ||
 * Number of Electrons || 2 Electrons ||
 * Trend || Non-Metal ||
 * State of Matter || Noble Gas ||
 * Common Uses || Balloons, Deep Sea diving ||
 * Family/Group || 8/18 ||
 * Bohr Model || [[image:science3-2012/lewis_structure.JPG width="158" height="101"]] ||
 * Lewis Structure || [[image:A_Jones_bohr.JPG width="160" height="95"]] ||
 * When Discovered || Helium was Discovered in 1895 ||
 * Who Discovered || Sir William Ramsay[[image:science3-2012/sir_william_ramsay.jpg width="122" height="176" align="right"]]
 * Where Found || this was found in London, England and Uppsala Sweden ||
 * Intresting Facts || helium is from the Greek word //hêlios// (sun),
 * Common Isotopes || He: -3 stable He: -4 stable ||
 * Ion Charge || neutral ||
 * Boiling/ Melting Point || ==== Boiling Point: 268.9**◦C 4.2 K ** ====

**Melting Point: 272.2 ****◦ C 0.95 K **
||

Work Cited Page"
====periodic table:helium." . N.p., n.d. Web. 7 Mar 2012. ."Helium: historical info." . N.p., n.d. Web. 7 Mar 2012. .Helium!." //youtube.com//. N.p., n.d. Web. 12 Mar 2012. []. ==== ====helium." //carondelet//. N.p., n.d. Web. 12 Mar 2012. <http://www.google.com/imgres?q=helium&hl=en&safe=strict&biw=1365&bih=761&gbv=2&tbm=isch&tbnid=48JS2NN8QCUjQM:&imgrefurl=http://www.carondelet.pvt.k12.ca.us/photo science."// sciencephoto//. N.p., n.d. Web. 12 Mar 2012. <http://www.google.com/imgres?q=sir william ramsay ====