Periodic Table Crossword

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Across
  1. 2. Come from ores in earth's crust
  2. 5. Low melting point; breaks easily
  3. 8. Not found alone in nature
  4. 9. The law that states elements listed in order of their atomic numbers will fall into groups
  5. 10. Good conductor; can corrode
  6. 11. Contains properties of both metals and nonmetals
  7. 13. Nonmetals become this when they are ions
  8. 14. Aluminum and Gallium have an ionic charge of positive _____
  9. 17. Radioactive and manmade
  10. 18. most reactive nonmetal of the periodic table
  11. 19. All alkaline earth metals are in this group on the periodic table
  12. 22. Colorless, odorless, and tasteless
  13. 23. This element is among the Halogen group
  14. 24. Creator of the first periodic table
  15. 25. Metals _____ electrons when transferring
  16. 26. Groups three to ______ on the periodic table are transition metals
  17. 29. Used to visualize an atom's valence electrons
Down
  1. 1. Alkali metals react with water to make these
  2. 3. Most reactive metals in the periodic table
  3. 4. Most reactive nonmetals
  4. 6. Poisonous metalloid
  5. 7. This alkaline earth metal rhymes with another radioactive element
  6. 12. A.K.A rare earth metals
  7. 15. This group number is also known as noble gases
  8. 16. Metals become this when they are ions
  9. 20. Organized the modern periodic table
  10. 21. _________ Electrons are in the highest energy level
  11. 24. Sodium, silver, and strontium are examples of this
  12. 27. The number of valence electrons in the Alkali metal group
  13. 28. Nonmetal often used in signs