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22 December, 23:46

How many chlorine atoms would be needed to bond with one calcium atom?

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  1. 23 December, 00:09
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    This is more chemistry, than biology ... but its ok.

    If you look at the Periodic Table, Calcium has an ionic charge of 2 + and Chlorine has an ionic charge of - 1.

    Using the rule of cross multiplication when forming a compound, where you swap the charges and change the charges to atoms, you get CaCl2

    Therefore, 2 atoms of Chlorine would be needed to bond with one calcium atom.
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