The total mass of the and in an atom is the atomic mass. Fill in the blanks Plzz

Explanation is in the file

cutt.ly/nz6VGda

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.

you need to have a picture of the atom that way we can answer it