What occupies the space between electrons and the nucleus?

First, I would like to address most of the answers I have seen here. These answers are correct under the framework of classical physics, and the Bohr model of an atom. Under this model, the answer “It is a vacuum, and the electrons orbit around the nucleus” would be correct. read more

Quantum Mechanics tells us there is no space between the electrons and the nucleus, because there are no fixed electrons. Instead, it is sort of “smeared” out across the entire atom most of the time, as a probability density function, only occasionally choosing a physical location when something interacts with it. read more

Short answer: The space between the nucleus and the electron is not empty space, it is filled with an electron cloud. (You will understand this answer better if you read the long answer) Long answer: Firstly, physics is a description of what we can observe. read more

First, I would like to address most of the answers I have seen here. These answers are correct under the framework of classical physics, and the Bohr model of an atom. read more

As to your second question, I'm slightly confused as to what you mean. Just because that their is empty space between one electron and another electron doesn't mean that the electrons themselves are vacuums. Similarly, just because a jar encompasses a vacuum doesn't mean that the jar itself is a vacuum. read more