Rutherford concluded from his calculations that the volume of an atom is filled with protons, neutrons and electrons. is mostly protons, with electrons revolving around the outside. is filled with electrons. is mostly empty space.

The answer is "is mostly empty space".

Explanation:

In the given question option numbers is defined, so the explanation to this question  as follows:

The volume of an element holds one mole at high temperatures. The nuclear mass is usually indicated by mole: cc/mol in the . It is also known as a quantity, in which the same molecule was the measured values based on atomic mass as well as the thickness of both, and certain alternatives were wrong which can be explained as follows: