Across
- 2. This is the model created by J.J Thomson after his experiments on the cathode ray tube.
- 5. Opposites _______.
- 7. This is the first theory evidence of the atom and was believed to be an indivisible, solid sphere.
- 8. Hydrogen is often called a "_____" isotope.
Down
- 1. This was the first scientist to discover the nucleus.
- 3. The cathode ray has a ________ charge.
- 4. This is a glowing beam used in Thomson's experiment.
- 6. The Cathode Ray Tube experiment was conducted by _______.