Across
- 3. The same element, but different numbers of electrons
- 7. Made his discovery in 1911, known for his Gold Foil Experiment
- 8. Plum pudding model/chocolate chip cookie model
- 9. A negatively charged particle found orbiting around the nucleus
Down
- 1. The same element, but different number of neutrons
- 2. First guy to theorize atoms with postulates
- 4. A positively charged particle found in the nucleus, determines identity of element
- 5. Basic unit of matter, makes up everything that takes up space
- 6. Known for his model we still use today, discovered the orbit of electrons
- 10. Known for his discovery of neutrons