Question

Describe the experiments conducted by Thomson and Rutherford, and how the observations and evidence from each of these experiments led to changes in the model of the atom.

Answer 1

Thomson did the cathode ray experiment and discovered the electron. By deflecting electrons off magnetic fields he was able to find its charge. Based on this experiment Thomson correctly concluded that matter includes electrons, and that led to the "plum pudding" model for the atom. Rutherford scattered alpha particles of gold atoms, and saw that some alpha particles bounced back at very large angles, about one in 10,000 alpha particles. This is inconsistent with the plum pudding model, and Rutherford suggested the "solar system model" for the atom, in which electrons orbit a nucleus like planets orbit the sun. That model was having big problems since its inception, and was abandoned when Niels Bohr proposed the Bohr model and later when quantum mechanics was used to find atomic structure.

Hope this will help you.

Answer 2

It did thank you!(:

Answer 3

yw . :D