Across
- 2. Group 14
- 3. Period 5 Group 3
- 5. In computer chips
- 7. Rhymes with moron
- 9. Period 3 Group 13
- 13. I
- 15. Period 5 Group 14
- 16. Group 16 Period 5
- 19. Named after a super smart guy
- 20. Period Group 1
- 21. Period 6 Group 11
- 25. Atom has 15 electrons
- 26. Period 4 Group 4
Down
- 1. Superman would not like it
- 4. Period 2 Group 1
- 6. It's what we need in air
- 7. A liquid with 35 protons
- 8. In bleach
- 10. Opposite of she
- 11. I live downstairs from oxygen
- 12. Atomic number 84
- 14. Period 4 Group 8
- 17. Named after the guy who invented the PTE
- 18. Period 6 Group 6
- 22. Period 6 Group 14
- 23. Most of air is this gas
- 24. Atomic number 33