1. compare the location of electrons in an atom based on bohr's theory with the location of electrons in an atom based on the current atomic theory.
2. rutherford performed his gold-foil experiment to test thomson's plum-pudding model. describe what the results would have looked like if it had supported the plum-pudding model instead of contradicted it.
explain nicely with not very long answers.

1. Bohr said that electrons orbited the nucleus in fixed circular orbits. In reality, electrons are not in fixed orbits, but can be predicted by the quantum mechanical model and orbitals which indicate places with high probability of finding an electron.
2. Rutherford found that some of his particles bounced off the gold foil because of the strongly positive nucleus. If the results had supported Thompson's model, all particles would have passed through with very minimal deflection.

Aphysical change is one that you can put in and remove like a ham sandwich. the stuff you put in there can be changem its not permanet. a chemical change is on that can't be change thats permanet. like when you make a cake and bake it. you can't get those ingredients back.