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9 September, 09:11

What electron configurations do atoms usually achieve by sharing electrons to form covalent bonds?

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  1. 9 September, 10:32
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    Explanation: The atoms attain the configuration of inert gas by sharing electrons.

    Lets take an example of HCl,

    Atomic number of H is 1 and it has only 1 valance electron. whereas atomic number of chlorine is 17 and it has 7 valance electron.

    When hydrogen atom combine with chlorine atom then they share electrons through covalent bonding in order to complete their octet.

    According to figure,

    Electronic configuration of H = 1

    Electronic configuration of Cl = 2,8,7

    Now, after share of electron

    Electronic configuration of H = 2

    Electronic configuration of Cl = 2,8,8

    Hence, we can conclude that when atoms share electrons then their octet gets complete and atoms achieve noble gas electronic configuration.
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