Question

State the observation in alpha particle scattering experiment which led Rutherford to make the conclusion that "whole mass of an atom is concentrated in its center. "
a. Most of the rays passed through thin gold foil undeviated.
b. Very few rays bounced back to the same path.
c. Some rays deflected through larger angles.
d. Centre is positively charged.

Answer 1

Answer:

I think the answer will be (b), since only a fraction of the alpha particles bounced back. Moreover to rebound such a heavy mass (in atomic levels)(alpha particle) we require something that has considerable mass itself and so he concluded that the entire mass of the atom was concentrated in the nucleus.