Question

what did thomsons and rutherfords experiments have in common? they both used charged particles in their experiments. they both used emission spectra to discover electron clouds. they both compared the atom to an indivisible sphere. they both discovered electron clouds.

Explanation:

Thomson used cathode - ray tubes with electrons (charged particles) in his experiment to discover the electron. Rutherford used alpha particles (positively charged) in his gold - foil experiment. Neither used emission spectra to discover electron clouds, neither compared the atom to an indivisible sphere, and Rutherford did not discover electron clouds.

Answer:

They both used charged particles in their experiments.