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→About Chlorine
: [[Chlorine]] is a pale green coloured [[gas]] at [[STP|room temperature]].
: An [[atom]] of [[Chlorine]] is missing one [[electron]] from having a full [[Outer Shell|outer shell]].
: [[Chlorine]] '''Chloride''' [[ion]]s gain 1 [[electron]] to get a full [[Outer Shell|outer shell]] and become [[Negative Charged|negatively charged]].
==Key Stage 4==