Module 5: The Periodic Table

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Across
  1. 2. a positively charge ion
  2. 6. calcium and magnesium are in this group of metals
  3. 7. rows on the periodic table
  4. 8. groups 3-12
  5. 9. 5f block
  6. 10. group 1 elements
  7. 12. a negatively charged ion
  8. 13. energy needed to remove an electron
  9. 14. an element with a complete octet (or duet in Helium's case)
  10. 15. gas, or dull looking brittle solids; sometimes liquids
  11. 17. s, p , d, or f
  12. 18. repetition of chemical/physical properties of the elements
  13. 20. group 17
  14. 21. columns on the periodic table
Down
  1. 1. tendency of an element to attract electrons
  2. 3. shiny, solid, smooth, good conductor of heat and electricity
  3. 4. groups 1, 2, and 13-18
  4. 5. the tendency to have 8 valence electrons
  5. 11. 4f block
  6. 16. properties of both metals and nonmetals
  7. 19. a charged element with an unequal amount of protons and electrons