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Transcript of Oxygen
6 Bennett Oxygen: Symbol Oxygen's atomic number is eight. Oxygen's mass number is 15.99. Oxygen is a gas at room temperature(about 20 degrees celsius). November 14, 2012 Oxygen is in group 16 and is in period two. It is in the chalcogen group. The group also includes sulfur, selenium, tellurium, polonium, and livermorium. Name Oxygen has four isotopes. It has a melting point of -218.4 degrees celsius. It has a boiling point of -183 degrees celsius. Oxygen tank The density of Oxygen is 1.429 g/cm cubed. The Bohr model for Oxygen HISTORY Oxygen was discovered by Joeseph Priestly in 1774. The word originates from Greece. It is made from the words oxus and gennan. Oxus means acid, and gennan means generate. Oxygen is a clear, colorless, odorless, tasteless gas. It is extremely abundant. It commonly combines with hydrogen to make water. Oxygen is used by almost every living creature on planet Earth. We use it to breathe. When it is chemically combined with hydrogen, humans use the result to drink, to clean ourselves, etc. FuN fAcTs Liquid oxygen is pale blue. Excited oxygen is what causes the red and green in the aurora lights. Oxygen is the most common element around Earth's crust. Oxygen Sources: Science Kids. "Oxygen Facts." Science Kids. Science Kids, 23 Oct. 2012. Web. 13
Nov. 2012. <http://www.sciencekids.co.nz/sciencefacts/chemistry/
oxygen.html>. "Oxygen." EnvSciRubin. sites.google.com, n.d. Web. 11 Nov. 2012.
Oxygen The sun is 1% oxygen.