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4.06 oxygen

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Shreyash Agrawal

on 26 April 2010

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Transcript of 4.06 oxygen

Oxygen Origin The name originates from the Greek words gennan meaning 'generate' and oxus meaning 'acid' and it was named because it was believed that all acids contained oxygen. Vanlence Electrons - 6 It is in the 2nd period and 16th group.
Sulfur is the element which has closest properties to that of Oxygen. Places found
In air as oxygen and part of carbon dioxide.
In water
Uses For breathing and drinking water Compounds Water- Natural
Carbon dioxide- Natural and man made
Nitrogen dioxide- Man made
Sulfur dioxide- Man made
Carbon monoxide- Man made Discovery It was discovered for the first time by a Swedish Chemist, Carl Wilhelm Scheele, in 1772. Joseph Priestly, an English chemist, independently, discovered oxygen in 1774 and published his findings the same year, three years before Scheele published. Antonie Lavoisier, a French chemist, also discovered oxygen in 1775, was the first to recognize it as an element, and coined its name "oxygen" Facts Approximately 2/3 of the mass of the human body is oxygen.
Oxygen provides us with 90% of our nutritional energy, with just 10% coming from the food we eat.
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