Rutherford's alpha particles scattering experiment resulted into the discovery of-

Correct option is A

The correct answer is (a) Nucleus in the atom.
· Rutherford's alpha particle scattering experiment led to the discovery of the nucleus in the atom. He observed that while most alpha particles passed through the gold foil, some were deflected at large angles, and a few even bounced back. This led him to conclude that a small, dense, positively charged region, which he called the nucleus, exists at the center of the atom.
Information Booster:
· Electron : Discovered by J.J. Thomson using the cathode ray experiment.
· Neutron : Discovered by James Chadwick in 1932.
· Proton : Rutherford discovered the proton through later experiments, but the alpha scattering experiment specifically revealed the nucleus.