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4.14     Use Lewis symbols to show electron transfer between the following atoms to form cations and anions :

                 (b) Ca \; and \; O

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Ca \; and \; O:

We have the electronic configurations of both:

Ca = 2,8,8,2 having 2 electrons in the valence shell, and it can donate 2 electrons to get to the nearest noble gas configuration.

O = 2,6   having 6 electrons in the valence shell, and it wants to complete its octet by accepting 2 more electrons.

So, there will be an electron transfer between them as follows:

Posted by

Divya Prakash Singh

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