Empty space inside of atoms

Question

Since most of the space between the nucleus and electron is empty space is that space in a vacuum? I’ve not seen any info on this online or in textbooks does anyone have anything on this?

Answer 1

Welcome to physics.stackexchange! You have to ask yourself what a vacuum is. Classically it is a macroscopic concept associated with the absence of gas pressure. The question if there is a vacuum between the molecules of a gas is therefore meaningless. In - microscopic - quantum mechanics vacuum can only be defined as the absence of matter in a probabilistic sense. The probability of finding any kind of matter should be zero. As this us absolutely not the case inside an atom, there exists no vacuum inside it.