Oxygen

 Symbol: O Atomic Number: 8 Atomis Mass: 15.9994 Number of Protons: 8 Number of Neutrons: 8 Number of Electrons: 8 Melting Point: -218.4 Degrees Celsius Boiling Point: -183 Degrees Celsius Normal Phase: Gas Oxygen is classified as a nonmetal and costs $.03/100 grams Oxygen also belongs to the chalcogen family in the Periodic table. The origin of it's name comes from the Greek words, oxus (acid), and, gennan (generate). It was first discovered by Joseph Priestly in 1774. =__Fun Facts! __=