Oxygen(O) Atomic Number:8 Atomic Mass:15.9994 Group 16 in the Oxygen Family Oxygen is a nonmetal Oxygen is a gas at room temperature Oxygen is colorless Melting and Boiling Point Oxygen’s melting point is -218.3 oC, 54.8 K Oxygen’s boiling point -182.9 oC, 90.2 K Background Info Oxygen was discovered in 1774 by Joseph Priestley in England and two years earlier, but unpublished, by Carl W. Scheele in Sweden. from the Greek words "oxy genes" meaning "acid" (sharp) and "forming" (acid former). Where it was found/obtained Oxygen may be obtained from the atmosphere by the liquefaction and fractional distillation of air. Physical Properties Oxygen exists in all three forms - liquid, solid, and gas. The liquid and solid forms are a pale blue colour. However, oxygen gas is colourless, odourless, and tasteless. The elemental structure is a cubic crystal shape. Chemical Properties Oxygen is a highly reactive element, highly paramagnetic, and is easily capable of combining with other elements. Uses of Oxygen Oxygen is used in various industrial chemical applications. It is used to make acids, sulfuric acid, nitric acid and other compounds. Diagram Sources: http://www.usesof.net/uses-of-oxygen.html http://theairwebreathe.weebly.com/physical-properties.html http://education.jlab.org/itselemental/ele008.html
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