Periodic Table Project

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Across
  1. 2. Most reactive nonmetal
  2. 3. Alkali Earth metals have a positve charge of *Blank*
  3. 4. Russian chemist that looked for common properties in elements.
  4. 8. Essentially non-reactive
  5. 11. Metals become positive ions called what?
  6. 12. He wrote a textbook that included an abbreviated version of a periodic table that contained 28 elements.
  7. 15. Alkali metals react with *BLANK* to make strong bases.
  8. 17. React violently with most nonmetals
  9. 18. less reactive than alkali metals
  10. 20. these are classified not as a nonmetal but instead a Metal.
  11. 21. Alkali metals classify as?
  12. 22. Alkaline earth metals react with water to form *BlANK*.
  13. 24. most gases are classified as *BlANK*
  14. 25. What can be easy or hard to change for Metalloids?
  15. 26. Noble gasses are classified as what?
  16. 28. becasue of their properties Transition metals are classified as?
  17. 29. elements with properties of metals and non metals
  18. 31. Metals have a *BLANK* melting point
  19. 32. These are the type of electrons that are the outermost
Down
  1. 1. Alkali Metals have a positive charge of *BLANK*
  2. 5. High electrical conductivity
  3. 6. was the first person who developed a periodic table by increasing atomic mass, he was not credited due to his table being incomplete.
  4. 7. Have multiple oxidation states
  5. 9. If a nonmetal isn't strong, it's what?
  6. 10. Valance electrons are the electrons that have the *BLANK* energy level
  7. 13. Halogens have a negative charge of *Blank*
  8. 14. extremely soft
  9. 16. All are radioactive
  10. 19. Lewis Dot Structures provide a way to visualize an atoms *BLANK*.
  11. 23. Halogens are classified as what?
  12. 27. Lanthanides A.K.A. *BLANK*
  13. 30. Actinides are metals due to them all being *BLANK*.