Matching Pairs Atomic TheoryOnline version Early models of atomic structure by Steven Herman 1 J. J. Thomsom's plum pudding atomic model 2 Niels Bohr's atomic model. Electrons do not fall into the nucleus because they orbit the nucleus at specific distances. 3 Ernest Rutherford's atomic model. Atoms are mostly empty space with a small, dense, positively charged nucleus, surrounded by light, negatively charged electrons. 4 John Dalton's Law of Simple Multiple Proportion 5 John Dalton's atomic model