Oxygen

Oxygen- O

My Element ProjectMaddy Madonia

Protons: 8Neutrons: 8Electrons: 8

Origin of Name

symbol: Oatomic number:8 atomic mass15.9994 state of matter: gasmelting point: -218.4°C boiling point:-182.962°Cdensity: -1.429 g/l at STP valence electrons-2Period Number: 2 Group Number: 16 Group Name: ChalcogenCommon Ion: O-2Electronegativity: 3.44

Properties

Uses

Colorless, odorless, tasteless gasThe common reaction in which it unites with another substance is called oxidation

DiscoveryOxygen was produced by many chemists prior to its discovery in 1774, but they failed to recognize it as a distinct element. Joseph Priestley and Carl Wilhelm Scheele both independently discovered oxygen. Priestly is usually given credit for the discovery though. They were both able to produce oxygen by heating mercuric oxide (HgO). The name oxygen was created by Antoine Lavoisier who incorrectly believed that oxygen was necessary to form all acids

From the greek words oxys and genes, which together mean "acid forming."

Electron Config.1s22s22p4

WATCH

SOURCEShttp://education.jlab.org/itselemental/iso008.html http://www.rsc.org/periodic-table/element/8/oxygen http://www.reference.com/browse/oxygen

Oxygen is utilized in medicine in the treatment of respiratory diseases and is mixed with other gases for respiration in submarines, high-flying aircraft, and spacecraft. Also, the chemical and the iron and steel industries. A growing use is in the treatment of sewage and of effluent from industry.