Periodic Table Crossword

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Across
  1. 2. Actinide with the largest atomic mass
  2. 3. these metals make up wires and sheets because they are ductile and malleable
  3. 4. Nonmetals on the far right of the periodic table
  4. 11. group of metals that contain Potassium and Lithium
  5. 12. react violently with nonmetals
  6. 14. what the first periodic table was organized by
  7. 17. person who arranged the periodic table by increasing atomic number
  8. 21. Positive ions are called?
  9. 24. most reactive halogen
  10. 25. Alkali metals have a _____ color luster when unoxidized
  11. 26. the most reactive nonmetals
  12. 27. group of elements that are brittle and poor conductors
  13. 29. Noble gases are essentially _______ or inert
  14. 30. an alkali metal with a mass of 132.91
  15. 31. metals donate or ____ electrons
Down
  1. 1. ductile and malleable conductors
  2. 5. first element in the Lanthanides group with an atomic number of 57
  3. 6. transition metal with the symbol "Au"
  4. 7. lightest Alkaline Earth Metal
  5. 8. Noble gas used to fill balloons
  6. 9. Alkali metals are most reactive with what substance?
  7. 10. Russian Chemist credited with making the first periodic table
  8. 13. Alkaline Earth Metals have this many electrons in their outermost level
  9. 15. Boron has _____ dots representing it's valence electrons
  10. 16. Negative ions are called?
  11. 18. noble gases have this many valence electrons
  12. 19. group of elements that contain properties from both metals and nonmetals
  13. 20. when there are more protons than electrons, an ion becomes what charge?
  14. 22. Metalloid with the atomic number 5
  15. 23. halogens have _______ valence electrons
  16. 28. all elements in this group are radioactive