Answer:
Electrons move in specific orbits in the modern model.
Explanation:
I'm still learning so, and D is not the answer.
The main difference between the cloud model of the atom and the modern model is that electrons exist in a cloud around the nucleus in the cloud model.
New theories usually don’t start “from scratch.” For example, the modern model of the atom is the result of new information added to the cloud model.
What is the main difference between the cloud model of the atom and the modern model?
The main difference between the cloud model of the atom and the modern model is that electrons exist in a cloud around the nucleus in the cloud model.
You can learn more about atomic models here: https://brainly.com/question/1596638