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Thompson was responsible for the discovery of the electron
Democritus believed that all substances were made up of four basic element fire, water, wind, and earth
The electron cloud model explains how electrons can be found in orbitals and is the current model of the atom
Dalton proposed the first modern atomic model and thought that atom were indestructible spheres
Rutherford state that electrons orbit around the nucleus like planets around the sun or in fixed paths
The neutron was discovered by Dalton in 1809
Chadwick was credited with the discovery of the proton.
Democrtius proposed his theory in 1911.
