This activity will help you diagnose your knowledge of the atomic theory and its history. Match column A with column B. 1. Democritus Plum A.pudding model 2. atomos B.Gold foil experiment 3.) jj Thomson C.Planetary model 4. Ernest Rutherford D.proposed that objects will eventually become indivisible if you divide them 5. Niels Bohr continuously E.Indivisible object please help me ASAP