The space between an atom's nucleus and it's electrons

AI Thread Summary
The discussion centers on the concept of what exists in the space between the nucleus of an atom and its surrounding electrons. It highlights that this space is too small for traditional matter, such as air molecules, leading to the conclusion that it is essentially "nothing." Additionally, it touches on quantum mechanics, noting that electrons exist within this gap but are described by a probability function, indicating their positions are not fixed but rather defined by probabilities. This raises intriguing questions about the nature of space at the atomic level and the implications for understanding matter and energy.
zts1986
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Earlier today I was thinking about what is in between the very few molecules of hydrogen floating around in interstellar space (dark matter?), and a question came to me.

What is in the space between the nucleus of an atom and the electrons that surround that nucleus? The space would be too small for air molecules, so what is there?
 
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Although in a QM sense, the electrons are in the gap just with a low probablility function
 

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