Question

Describe an octet rule.

• A. Atoms of various elements enter into chemical combination so as to attain the configuration of eight electrons in their outermost shell
• B. Atoms of various elements enter into physical combination so as to attain the configuration of eight electrons in their outermost shell
• C. Atoms of various elements enter into chemical combination so as to attain the configuration of eight electrons in their innermost shell
• D. Atoms of various elements enter into physical combination so as to attain the configuration of eight electrons in their innermost shell

Answer 1

The correct option is A Atoms of various elements enter into chemical combination so as to attain the configuration of eight electrons in their outermost shell

The Octet rule states that atoms of elements are stable with 8 electrons in their outermost shell and they tend to undergo chemical changes ( losing or gaining electrons ) to get this structure.

Elements after these chemical changes attain noble gas configuration. Chemically active elements don’t have 8 electrons in their outermost shell and that’s why they lose or gain electrons to obtain stable octet structure.

Hence, option A is correct.