Ernest Rutherford mostly believed in that it was mostly empty space with positively charged atoms.
...a positive charge. He called these central regions the nucleus. This model laid the foundation for the modern understanding of atomic structure.
The experiments were being done by Ernest Marsden, and Hans Geiger, under the supervision of Ernest Rutherford.
Ernest Rutherford is credited with discovering the positive charge of a nucleus through his famous gold foil experiment in 1909. This experiment showed that most of the mass and positive charge of an atom is concentrated in a small, dense nucleus at its center.
a nucleus with a positive charge
Hans Geiger and Ernest Marsden. Rutherford was the supervisor and explained the unexpected results, so his name is usually attached to the experiment as well, but it was Geiger and Marsden who actually did it.
Ernest Rutherford is the scientist who envisioned the atom as a ball of positive charge with electrons embedded in it. This model became known as the Rutherford model of the atom.
This particle is the proton.
nucleus
The main feature of Thomson's atomic model that was changed after Rutherford's discoveries was the location of the positive charge in the atom. Rutherford discovered that the positive charge was concentrated in a small nucleus at the center of the atom, rather than being spread out evenly throughout the atom as Thomson had proposed.
The Rutherford model proposed that an atom's positive charge is concentrated in a dense center called the nucleus. This model was based on the famous gold foil experiment conducted by Ernest Rutherford in 1909.
ernest rutherford
ernest rutherford