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22-02-2016
Physics

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Explain why chlorine forms a -1 ion, but sulfur forms a -2 ion.

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22-02-2016

For a chlorine atom to become a chloride ion, it must gain an electron.The chloride ion has a negative charge and is written as Cl-. Chlorine gains an electron because it has seven valence electrons, and to be a full octet, it gains an electron.

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