Question

Octet rule states that elements tend to combine in such a way that each atom has eight electrons in its valence shell. Why only 8 electrons?

• A. Because 8 is a fancy number.
• B. Because noble gases have 8 electrons in their valence shell.
• C. Because elements with less than 8 valence electrons are more stable.
• D. It's a golden number.

Answer 1

The correct option is B

Because noble gases have 8 electrons in their valence shell.

Since all noble gases have 8 valence electrons and they are highly stable than those elements with fewer valence electrons, the octet rule sticks with 8 electrons.