Rutherford Overturned J.J Thomson's model by
conducting the Gold and Foil experiment. He did this
to observe the effect of the alpha particles matter.
Rutherford's hypothesis was that these particles
penetrate a thin metal foil. However, they may scatter
slightly because of the charge in the metal atom's
subatomic particles. After shooting the alpha particles,
he discovered that the atom has a tiny nucleus which
is positive and that the electrons scatter around
the nucleus. Rutherford disproved J.J Thomson's
model because he discovered the nucleus.