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Oxygen
Beginning of essay
about
is a Group 16 element. is the third most abundant
element found in the sun, and it plays a part in the carbon-nitrogen cycle,
one process responsible for stellar energy production. in excited
states is responsible for the bright red and yellow-green colours of the
aurora. The atmosphere o ....
Middle of essay
....seph Priestley is generally credited
with its discovery (who made oxygen by heating lead or mercury oxides), but
Carl Wilhelm Scheele also reported it independently. The behaviour of
oxygen and nitrogen as components of air led to the advancement of the
phlogiston theory of combustion, which influenced chemists for a century or
so, and which delayed an understanding of the nature of air for many years.
History
(Gr. oxys, sharp, acid, and genes, forming; acid former) For many
centuries,.... |
| Number of words: 954 |
Approximate pages: 4 |
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