What did Rutherford conclude from his experiment regarding the central portion of any atom?
Central part is the nucleus
When Rutherford experimented with bombarding alpha particles on gold foil, he realized that few particles bounced back directly. Rutherford’s result led him to believe that most of the foil was made of empty space, but had extremely small, dense lumps of matter inside, which is present only at the center because from center, only a few particles bounced back. All other particles deflected at different angles. So Rutherford concluded that atoms contain a heavy nucleus that lies in the centre.