He believed atoms were indivisibl, those of a given element are identica, and compounds are combinations of different types of atoms
What was Rutherfords model?
That the negatively charged electrons surround the nucleus of an atom in shells rather than a cloud
What did J.J Thomson discover and propose?
Electron; Plum pudding model
What was Rutherfords experiment and what did it show?
Gold foil experiment where most alpha particles went through showing atoms were mostly empty space and he discovered the atom consists of positively charged particles in the nucleus.
What did Chadwick discover?
Neutron
What was Bohrs theory?
Quantum model where electrons are in fixed shells which have a fixed energy level
