Periodicity Terms

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Across
  1. 5. _____ earths..have a valence config. of s2
  2. 8. electron ___ is the attraction for an electron
  3. 9. another name for a period
  4. 10. __ state is the number of e- lost/gained/shared
  5. 13. atom's attraction for shared electrons
  6. 15. energy required to remove an electron
  7. 16. Cl, Br, I, F
  8. 18. Gases with 8 valence electrons --- STABLE
  9. 19. the atomic radius decreases within a period
Down
  1. 1. having the same electron arrangement
  2. 2. Metals in the d sublevel block
  3. 3. the metals, Na, Li, K, Rb
  4. 4. absorbing energy during a change
  5. 6. 4f series
  6. 7. similar properties...another name for a group
  7. 11. releasing energy during a change
  8. 12. element w/ metallic and nonmetallic properties
  9. 14. a vertical column on the periodic table
  10. 17. a horizontal row on the periodic table