Critical thinking questions
8. what relationship exists between an atom's valence electrons and the number of dots in the
lewis structure of the atom?

the dots on a lewis structure represent valence electrons so they are the amount of valence electrons in the lewis structures atom

answer : a model is often used to explain and make things easier to understand when any scientific topic needs to be demonstrated and explained.

as in this case where a scientist wants to use a model to present the results of his detailed scientific investigation. he should do it as it will him to make the audience understand the concept in a much better way. also, it can be changed according to new scientific understandings.