Across
- 2. organizes all 118 elements
- 5. tells you the number of protons in an atom
- 7. element with a symbol of Au
- 8. element with a symbol of Sb
- 12. element with a symbol of K
- 13. element with a symbol of Na
- 14. all matter is made of these
- 15. element with a symbol of Cu
- 18. negatively charged particle
- 19. positively charged particle
- 20. charge of a neutron
- 22. the name of the electrons on the outside energy level
- 24. the name of the vertical columns on the periodic table
- 25. the number of valence electrons that hydrogen and lithium have
- 26. element with a symbol of Ag
- 27. the home of the protons and neutrons
- 28. element with a symbol of Pb
Down
- 1. element with a symbol of Hg
- 2. charge of a proton
- 3. group 17, period 4
- 4. element with a symbol of Sn
- 6. group 2, period 3
- 9. neutral particle
- 10. element with a symbol of Fe
- 11. element with more protons than carbon and less electrons than oxygen
- 16. the name of the horizontal rows on the periodic table
- 17. charge of a electron
- 18. the period an element is in tells us how many ____ it has
- 21. where the electrons live
- 23. the combined number of protons and neutrons