Across
- 4. in group 5 and has 3 energy levels
- 6. vertical on the periodic table
- 7. Its symbol is He
- 9. if this element were to have 1 more proton, it would have 19 with a charge of +1
- 11. used to make ions
- 14. metalloid with 3 energy levels
- 16. the element diamonds are made of
- 17. used to change elements
- 20. neutral charge
- 21. charge of an electron
- 22. charge of a neutron
- 23. charge of a proton
- 25. Large marsupial
- 26. 2 energy levels, 2 valence electrons
Down
- 1. Bananas!
- 2. seen in salt
- 3. this is in the air and we breathe it
- 5. atomic mass of 1
- 8. 3 energy levels, 2 valence electrons
- 10. horizontal on the periodic table
- 12. this element is used in toothpaste
- 13. 2nd element on the 1st group
- 14. smells like rotten egg
- 15. atomic mass of 11
- 16. used in pools to clean them
- 18. colored lights
- 19. element 7
- 24. group 2, period 4
