Atoms are not mostly empty space because there is no such thing as purely empty space. Rather, space is filled with a wide variety of particles and fields. ... It's true that a large percentage of the atom's mass is concentrated in its tiny nucleus, but that does not imply that the rest of the atom is empty.

What percentage of an atom is empty space?

A hydrogen atom is about 99.9999999999996% empty space. Put another way, if a hydrogen atom were the size of the earth, the proton at its center would be about 200 meters (600 feet) across.

Why most of the space in an atom is empty?

most of the space in atom is empty because atoms contain electrons whose mass is negligible.so the nucleus contain all the mass of the atom as having both neutrons and protons. ... therefore because of this most of the space in atom is empty.