Atomic History

3. ______model: dalton's model
4. theorized that everything is eventually uncuttable
7. discovered the electron via the cathode ray tube
9. (Last Name)determined when electrons lose their energy they drop energy levels.
13. _________ model: predicts an area where electrons are likely to be.
15. Erwin _____ was one of the scientist to discover our current model of the atom
16. (First Name) shot alpha particles at a thin sheet of gold foil.
17. part of Dalton's Atomic Theory: atoms of the ____ element are the ____.
18. Greek word meaning indivisible

1. at the center of Rutherford's model.
2. _______ model: JJ Thomson's model of the atom.
5. (Last Name) discovered the nucleus of the atom.
6. In thomson's model the atom is a ____ sphere studded with negative electrons
8. ____experiment used to discover the electron.
10. _____ model: electrons orbit the nucleus and set energy levels.
11. Part of Werner's discovery: you can either know an electron's ______ or speed but not both.
12. elements are extremely small particles called ____.
14. atoms cannot be _____ or destroyed