Across
- 5. each row across the periodic table
- 7. he founded the electron
- 9. what do you do to a wrinkled shirt? (pun)
- 11. The sum of protons and neutrons in the nucleus of an atom.
- 12. he founded atom and he called it atomos
- 13. a diagram, a mental picture or an object that helps explain ideas
- 14. he made the first ever periodic table
- 15. located around the nucleus and it has a negative charge
- 17. a very small center of an atom
- 18. located in the nucleus and it has a postive charge
- 20. a fur seller? (pun)
Down
- 1. I proud to be a ? (pun)
- 2. where all elements are and it also helps scientists
- 3. not an exciting person? (pun)
- 4. The number of protons in the nucleus of an atom.
- 6. the first ever model created
- 8. This man followed the yellow brick road? (pun)
- 10. place wear you wash the dishes? (pun)
- 16. located in the nucleus and its neutral charge
- 19. each column in the periodic table