A short answer for the Rutherford atomic model: the atom is composed from a central part - a nucleus, positively charged, surrounded by electrons - very small negative charged particles.
In Rutherford's model of the atom, the atom is like a tiny, dense nucleus at the center surrounded by orbiting electrons. This model is often compared to a solar system where the nucleus is like the sun and the electrons are like planets moving around it.
The gold-foil experiment
When Rutherford discovered the positive charge in an atom was concentrated in the nucleus, the neutron had yet to be discovered. There are no neutrons in Rutherford's model.
rutherford
Rutherford discovered the atomic nucleus, proposed a nuclear model of the atom also he isolated nitrogen.
Rutherford pictured the atom as a miniature solar system, with a dense positively charged nucleus at the center and electrons orbiting around it in fixed paths. This model is known as the Rutherford model of the atom.
You can find a picture of a Bohr Rutherford diagram for a carbon atom by doing an image search on a search engine like Google or by checking science textbooks or educational websites that cover atomic structure.
In Rutherford's model of the atom, the atom is like a tiny, dense nucleus at the center surrounded by orbiting electrons. This model is often compared to a solar system where the nucleus is like the sun and the electrons are like planets moving around it.
Rutherford
Ernest Rutherford was the man you are thinking of. He was the first person to 'split the atom'.
The gold-foil experiment
split the atom
The nuclear atom was discovered by Ernest Rutherford. He did it with a gold foil experiment.
In 1920, Rutherford gave the name proton to the positively charged particles in the nucleus of an atom.
When Rutherford discovered the positive charge in an atom was concentrated in the nucleus, the neutron had yet to be discovered. There are no neutrons in Rutherford's model.
Rutherford discovered in the early 1900s that most of an atom's mass is located in its nucleus.
Rutherford imagined the atom to be a particle with a thickly concentrated positive nucleus and electrons moving around it.