Periodic Table Project

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Across
  1. 1. "rare earth metals"
  2. 3. Alkali metals
  3. 4. There are this many groups on the periodic table
  4. 6. Actinides
  5. 10. Most reactive metals are what
  6. 13. An element with positive 2 charges
  7. 14. Noble gasses
  8. 18. Amount of valence electrons in group 2
  9. 19. Reacts with water to make stronger base
  10. 22. Classification of Noble gasses
  11. 23. grouped into a row not a column
  12. 24. Contains Alkaline earth metals
  13. 25. Alkaline earth metals
Down
  1. 2. Comes from ores in earths crust
  2. 5. Metals lose, while electrons what
  3. 7. Location of Halogen
  4. 8. Classification of alkali metals
  5. 9. most reactive nonmetals
  6. 11. Credited for first periodic table
  7. 12. He organized the elements in order of increasing atomic mass
  8. 13. Ductile and Malleable
  9. 14. positive ions are called
  10. 15. Classification of actinides
  11. 16. An element with positive 3
  12. 17. dense
  13. 18. Amount of valence electrons in AL
  14. 20. Classification of halogens
  15. 21. Halogens