Answer:
Rutherford proved J.J is wrong.
Step-by-step explanation:
The Plum Pudding Model which was put forth by J.J Thompson stated that atoms are tiny particles of positively charged particles, with tiny negative charged particles stuck inside.
When Rutherford did the goldfoil experiment, he concluded that electrons (the negatively charged particles) actually revolve around the nucleas.
what's the nucleas?
So this too, was put forth by Rutherford that there is a centre of positive charges in an atom called nucleas it consists of protons and neutrons
hence, Rutherford proved that Plum Pudding Model was wrong.
hope I helped you :)