Atoms form chemical bonds to satisfy the rule and to become you in advance

Atoms form chemical bonds to satisfy the OCTET rule and to become STABLE.

The noble gases are the only set of elements that have 8 electrons in their outermost shells and that is why they are stable and unreactive. Other elements in the periodic table have less than 8 electrons in their valence shells and thus, they usually undergo chemical reactions in order to have 8 electrons in their valence shells and to attain stability. The octet rules states that an element must have 8 electrons in its outermost shell in order to be stable.