Across
- 2. This element has 14 electrons
- 4. this element is used in balloons to make them float
- 6. this element has 6 neutrons
- 7. where the noble gases are Located
- 8. symbol is Mg
- 13. this element is used in pools
- 16. this element has 31 neutrons
- 17. Symbol is Ag
- 18. Symbol is Na
- 19. symbol is N
- 20. element with the periodic number 3
- 22. Symbol is Au
Down
- 1. element with the periodic number 21
- 3. where the alkali metals are located
- 4. element with the periodic number 1
- 5. symbol is k
- 9. symbol is Al
- 10. symbol is Cu
- 11. most of the elements on the periodic table are this
- 12. This element has 8 neutrons
- 13. symbol is Co
- 14. element used in OPEN signs
- 15. symbol is As
- 21. symbol is Fe