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John Dalton model
pictures atoms as indestructible particles with no internal structure -
JJ thomson model
discovers electron. Leads to his "Plum pudding" model. Pictures electron embedded in a sphere of positive electrical charge. -
Hantaro model
suggested atoms have a small central nucleus. Electrons move in orbits. -
Ernest Rutherford
He finds that an atom has a small positively charged nucleus. Electrons move around nucleus. -
Neil Bohr model
The electron in a circular orbit at fixed distance from the nucleus. -
Louis de Brogile
Proposes that moving particles have some properties of waves. -
Erwin Schrodinger
Created mathematical equations to describe the motion of electrons in atoms, work leads to electron cloud model. -
James Chadwick
He confirms the existence of neutrons which have no charge, Atomic nuclei contain neutrons and positively charged protons.