Question : Who first introduced the idea of a relationship between molecular geometry and the number of valence electrons in the 1940s?
Option 1: Bent and Nyholm
Option 2: Hendricus and Nicol
Option 3: Sidgwick and Powell
Option 4: Heitler and Gillespie
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Correct Answer: Sidgwick and Powell
Solution : The correct option is Sidgwick and Powell.
In 1940, Herbert Powell and Nevil Sidgwick proposed the notion that molecule shape and the number of valence electrons were correlated. They claimed that the number of valence electron pairs surrounding the core atom determines the shape of a molecule.
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