In order to satisfy the octet rule, an atom with the following electron arrangement can shell 1: 2 electrons shell 2: 8 electrons shell 3:5 electrons

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An atom with 2 electrons in shell 1, 8 in shell 2, and 5 in shell 3 has a total of 15 electrons, indicating it is in the third period of the periodic table and belongs to group 15 (p-block elements). To satisfy the octet rule and achieve a stable electron configuration similar to the nearest noble gas, it needs to gain three electrons to fill its outermost shell to have 8 electrons.

In Order to Satisfy the Octet Rule, an Atom with the Following