Across
- 8. What kind of electron is found on the outermost energy level of an atom?
- 9. these are used to represent anything that is too small or big
- 10. Neutrons and _______ are larger and heavier than electrons.
Down
- 1. What moves around the outside of the nucleus of an atom?
- 2. What will be different between isotopes?
- 3. How many electrons can the fourth energy level hold?
- 4. Electron clouds are sometimes called this
- 5. These have no electrical charge.
- 6. The electrical charge an atom carries is called what?
- 7. What is based on the number of protons?