Biology
How much of an atom is empty space?
>99.9999% empty
How much of an atom is empty space?
Atoms are almost entirely empty space. If the nucleus of a hydrogen atom were scaled to the size of a football, the electron would orbit at a distance of roughly 10 km. If you could remove all the empty space from every person on Earth, all 8 billion of us would fit inside a cube about 1.3 km per side.
Source: Standard atomic physics