Chem Scientists

Democritus

All matter is made up of tiny particles that are indivisble

John Dalton

Common substances always broke down into the same elements in the same proportions

JJ Thompson

Atoms have negatively charged regions

Ernest rutherford

Atoms consisted largely empty space with a positively charged nucleus in the center and electrons occupying the empty space around it

Niels Bohr 

Built off of Rutherford, Electrons orbit the nucleus at fixed energies and distances able to jump from one level to another not the space between 

Erwin Schrodinger

Electrons exisit in organized orbitals called S,P,D,F

Louis de Brogile

electrion movement can be described as waves with wave like motion