1. Choose the scientist: write X for Democritus, D for Dalton, T for Thomson, R for Rutherford or B for Bohr
2. _______ He theorized that atoms are the smallest particle, and that all atoms of an element were identical to all other atoms of the same element this was not correct.
3. _______ The discovery of the nucleus was his claim to fame.
4. _______ His yummy plum pudding model was formed after the discovery of the electron.
5. _____ A philosopher that said matter could be broken down only into the smallest particle, an atom.
6. _______ He was the one who organized the electrons into rings or levels orbiting the nucleus.
7. _______ Determined the atom was mostly empty space with a positive core called a nucleus.
8. _______Invented the cathode ray tube to find the charge particles of atoms.