Periodic Table Words

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Across
  1. 3. nuclear charge reducer
  2. 6. inner transition metals
  3. 7. groups13-15 metals
  4. 10. L to R like sentence
  5. 11. group8 nonmetals
  6. 17. groups3-12 metals
  7. 18. neutral charge
  8. 19. atomic# 21,39,57-71
  9. 20. inner transition metals
Down
  1. 1. group1 metals
  2. 2. universe's components
  3. 4. reactivity
  4. 5. group2 metals
  5. 8. protons in nucleus
  6. 9. positive charge
  7. 12. negative charge
  8. 13. families
  9. 14. mass of single atom
  10. 15. group17 nonmetals
  11. 16. right line