Across
- 3. What is the dense center of an atom called?
- 5. Bohr discovered that electrons do what in relation to the nucleus?
- 9. What particle of an atom was discovered in 1897?
- 11. Quantum mechanics were used to describe what in relation with electrons?
- 12. Who made the Bohr model?
- 13. Who confirmed the existence of the neutron?
- 14. What experiment was used by Rutherford?
Down
- 1. Who's discovery of positive particles aided in the discovery of protons.
- 2. Who discovered the electron?
- 4. What was the name of Thomson’s experiment?
- 6. Who developed the quantum mechanical model?
- 7. Who first thought of the atom?
- 8. Who discovered that the atom was mostly empty space?
- 10. What was the original Greek name of an atom?