Question

Describe Rutherford's contribution to the atomic model.

Answer 1

Rutherford brought the concept of a nucleus. He said that the atom "had a tiny and heavy nucleus."

Answer 2

Rutherford (1871–1937) was responsible for a remarkable series of discoveries in the physics, especially in the atomic model.
He identified the atomic nuclei - a relatively high central charge concentrated into a very small volume in comparison to the rest of the atom.
The Rutherford model is a model of the atom we know today.