Step 1 - Briefly remembering atomic models
Thomson: one of the first proposed models for the atom. It pictures the atom as having a massive nucleus positively charged, and the electrons are also in the nucleus, counter balancing the nuclear charge.
Rutherford: already pictures the atom as mostly empty space. Rutherford states that the nucleus is way smaller compared to the atom as a whole. Protons are at the nucleus, while electrons surround the nucleus.
Bohr: it's almost the same as Rutherford, but the electrons are organized in "orbits" around the nucleus.
Quantum mechanical: the most accurate and recent model so far, it describes electrons as occupying orbitals, which are not orbits. The atom here is mostly made of empty space as well.
Step 2 - Answering the exercise
As we can see, all models except Thomson's picture the atom as composed mainly of empty space.
Answer: all except Thomson's
