periodic table crossword

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Across
  1. 3. nonmetals have a __ melting point
  2. 4. this elements is a halogen and has the symbol CL
  3. 7. these groups are the most reactive non metals
  4. 8. Fluorine sulfur and bromine are all examples of this element
  5. 10. noble gasses have this many valence electrons
  6. 11. this group have high melting and boiling points
  7. 12. this group is radioactive
  8. 18. this element is a part of the transitions metals that's symbol is TI
  9. 19. this structure uses dots to show valence electrons
  10. 21. bromine's charge when a ion is
  11. 22. this element is a part of the noble gasses and has the symbol Ar
  12. 24. the first the first periodic table sorted by ____________
  13. 26. metalloids can be both shiny and ____
  14. 29. this group has a full valence shell
  15. 31. Lithium, sodium, and potassium are all parts of this element
Down
  1. 1. these groups have a plus two charge
  2. 2. this is the only group that cant be a ion
  3. 5. this is the most reactive element on the table
  4. 6. metals these groups are extremely soft
  5. 9. oxygen's charge when a ion is
  6. 13. this element is a part of the alkaline earth metals
  7. 14. this is a part of the Actinide and symbol is U
  8. 15. three nitrogen charge when a ion is
  9. 16. Germanium Tellurium and astaline are all examples of this element
  10. 17. theses groups are good conductors of heat
  11. 20. Who Made the first periodic table
  12. 23. metals are ____ conductors of electricity
  13. 25. Changed the periodic table to be sorted by atomic numeber
  14. 27. this element is a part of the alkali metals
  15. 28. this is the least reactive element on the periodic table
  16. 30. this event is a part of Lanthanide group and symbol is CE