P5+-+Oxygen


 * **Elements in the Chalcogen group:**
 * Oxygen
 * Sulfur
 * Selenium
 * Tellurium
 * Polonium

the classification of oxygen is non-metallic

Oxygen symbol is O its atomic number is 8 its atomic weight is 15.9994 sources: Title WebElements Auther Mark Winter Copy Write 1993-2009 Last updated 11:30 oct 17. tittle Compounds Auther Lynnette Brent. Puplished in Canada Copy write Crabtree Puplishing. Molecular oxygen By Mark Winter.
 * Oxygen is a group 16 element
 * the colors of the northern lights are caused by oxygen
 * oxygen is a gas
 * liquid oxygen is a light blue color
 * Mars only has about 0.15% of oxygen
 * 1/5 of the atmosphere is oxygen
 * 2/3 of the human body is oxygen
 * 1/5 of water is oxygen
 * oxygen is part of the nitrogen-carbon cycle
 * oxygen is the 3 most abundant element found in the sun