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30 April, 04:28

What must happen to a Calcium atom in order for it to have a noble gas electron configuration?

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  1. 30 April, 07:00
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    Calcium atoms will lose two electrons in order to achieve the noble gas configuration of argon. A neutral calcium atom has 20 electrons, while a calcium atom that has lost two electrons will have 18 electrons, and a neutral argon atom also has 18 electrons. configuration of 1s22s22p63s23p6, the same as a Ca2 + cation.
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