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30 July, 03:21

How many electrons will a calcium (ca) atom gain or lose in forming an ion?

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  1. 30 July, 03:41
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    Calcium has an atomic number 20. This means that calcium has 20 electrons.

    The electronic configuration of these 20 electrons is as follows: 2,8,8,2

    For the calcium to become stable, it should have eight electrons in its outermost energy level.

    Based on this, calcium loses two electrons to form an ion and become stable.
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