Question

octet configuration

Answer 1

when the last energy level or shell is filled with 8 electron it is called octet configuration

Answer 2

Explanation:

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The octet rule states that atoms tend to form compounds in ways that give them eight valence electrons and thus the electron configuration of a noble gas. An exception to an octet of electrons is in the case of the first noble gas, helium, which only has two valence electrons.