Ch 11: Periodic Table and the Trends

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Across
  1. 6. abbreviation for an element's name (2W)
  2. 7. distance from nucleus to valance electrons (2W)
  3. 8. families 3 to 12 (2W)
  4. 10. characteristics of atoms above the staircase (2W)
  5. 17. characteristics of atoms below the staircase (2W)
  6. 18. table of chemical elements arranged in order of atomic number (2W)
  7. 19. energy needed to remove valance electrons (2W)
  8. 20. ionization energy ________ going across a period
  9. 23. change in energy of neutral atom (2W)
  10. 27. number of protons in an element (2W)
  11. 28. underlying cause of trends in periods
  12. 30. family directly to the left of noble gases
Down
  1. 1. ion with a positive charge
  2. 2. also known as the nitrogen family
  3. 3. unit of measurement for ionization energy (2 acronyms)
  4. 4. for noble gases, electronegativity is ________ (2W)
  5. 5. variable that is measured in an experiment (2W)
  6. 9. underlying cause of trends in families (3W)
  7. 11. attraction between the nucleus of one atom and the electrons of another
  8. 12. family including Be (3W)
  9. 13. variable not affected by other factors in an experiment (2W)
  10. 14. force between positive and negative changes (2W)
  11. 15. electronegativity ________ going down a group on the periodic table
  12. 16. radius of an ion of an atom (2W)
  13. 21. elements family of elements with full outer electron shells (2W)
  14. 22. patterns present in the periodic table (2W)
  15. 24. the element next to sulfur with a higher ionization energy
  16. 25. family farthest to the left (2W)
  17. 26. unit of measurement for atomic radius (acronym)
  18. 29. ion with a negative charge