Across
- 2. emits helium nuclei
- 4. distance between crests
- 9. The mnemonic device that finds the atomic # and mass
- 13. gains electrons
- 14. a range of all types of radiation that have electric and magnetic fields
- 15. spherical shape
Down
- 1. elements in column 8A
- 3. electrons occupy orbitals of lowest energy first
- 5. repeating properties
- 6. has 5 orbitals
- 7. Bowling Ball Model
- 8. this charge is carried by subatomic particles
- 10. shiny
- 11. most reactive nonmetals
- 12. discovered the proton