Rutherford - nucleus

Answer 1

Rutherford's model of the atom, also known as the nuclear model, was proposed by New Zealand physicist Ernest Rutherford in 1911. Through his famous gold foil experiment, Rutherford discovered that an atom consists of a small, positively charged nucleus at its center, which contains most of the atom's mass. He found that the nucleus is surrounded by negatively charged electrons, which orbit around the nucleus like planets around the sun. This model overturned the previous assumption that the positive charge of an atom is spread uniformly throughout its volume. Rutherford's nuclear model of the atom laid the foundation for the modern understanding of atomic structure.