Periodic Table Project Puzzle 3

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Across
  1. 3. The ionic charge of a halogen.
  2. 4. Nonmetals have ___ melting points
  3. 5. A metalloid on the periodic table
  4. 7. This group is all radioactive
  5. 8. An an element in the Actinide group
  6. 13. This group has high melting and boiling points.
  7. 15. The number of dots on Carbon’s Lewis Dot Structure
  8. 16. Halogens are found in this group number
  9. 18. Most reactive non-metal on the periodic table
  10. 20. Negatively charged ions are called _______.
  11. 21. First person to create a periodic table organized by atomic number
  12. 22. A nonmetal on the periodic table
  13. 24. Creator of the first Periodic Table
  14. 26. A metal in the fifteenth group on the periodic table
  15. 28. This group are malleable and ductile.
Down
  1. 1. The ionic charge of an Alkali Metal
  2. 2. This type of element shares properties with both Metals and nonmetals
  3. 5. This group is the most reactive type of metals
  4. 6. Most reactive metal on the periodic table
  5. 7. Mendeleev's Periodic Table was organized by increasing ______ ____
  6. 9. Noble Gases are colorless, odorless, and _________
  7. 10. This group is the only group that contains liquids, solids, and gases.
  8. 11. A transition metal found period four
  9. 12. Noble gases have a _______ valence electron shell
  10. 14. Alkaline Earth Metals make up this group number
  11. 17. Alkaline Earth Metals oxidize in ___
  12. 19. Alkali Metals make up this group number
  13. 23. Metals ________ electrons, when they become cations.
  14. 25. A Lanthanide on the periodic table
  15. 27. This type of element is an excellent Conductor of heat and electricity