What is the history of the octet rule in chemistry?

What is the history of the octet rule in chemistry?

The octet rule, proposed by Gilbert Lewis in 1916, suggests that atoms tend to bond in a way that gives them eight valence electrons, achieving a stable electron configuration.

How did this rule change our understanding of chemical bonding?

The octet rule helped explain why atoms form certain types of bonds and provided a framework for understanding molecular stability and reactivity.

Were there any exceptions to the octet rule?

Yes, there are exceptions, such as in the case of elements like hydrogen, lithium, and those in the third period and beyond, which can have expanded octets.

Who were the key figures in developing this concept?

Key figures include Gilbert Lewis, who formulated the rule, and Linus Pauling, who further developed theories of chemical bonding.

How is the octet rule applied in modern chemistry?

Today, the octet rule is used to predict molecular structures and reactivity, although it's often supplemented by more advanced theories.