Students were asked to submit an orbital diagram for a neutral, ground state nitrogen atom. match each submission to the appropriate evaluation. av av av [choose] [choose too many electrons shown this is the correct orbital diagram this shows an ion of nitrogen with the electron configuration of neon violated aufbau's principle îï î î [choose] 11 [choose] so this is the correct orbital dias

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.