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The Element: Chlorine
Part 1 of Paper
....mber of 17 and an atomic weight of 35.453. It has a
valence number of 3. The element has 3 energy levels. Chlorine exists
as a greenish-yellow gas at normal temperatures and pressures. Chlorine
is second in reactivity only to fluorine among the halogen elements.
Chlorine is a nonmetal. It is estimated that 0.045% of th.... Part 2 of Paper
....combines with hydrogen of the
paraffin, forming hydrogen chloride, and uncombined carbon is left in
the form of soot. Soot is black residue from fuel. Chlorine replaces
iodine and bromine from their salts. Dry chlorine is somewhat inert or
not able to move, but moist chlorine unites directly with most of the
elements.
History
Chlorine was discovered in 1774 by Karl Scheele. Humphry Davy
proved that chlorine was an element. Extensive production began 100
years later. During the 20th Century.... |
| Number of words: 1163 - Approximate pages: 5 |
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