Unit One

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Across
  1. 2. opposites attract same repulse
  2. 3. the electrons in the outermost shell
  3. 5. atoms shared equally
  4. 7. definite and cant separate it physically
  5. 10. uses filter
  6. 11. increases to the right of PT
  7. 13. mass in grams of one mole of a substance
  8. 16. effective nuclear charge
  9. 17. separates substances by boiling
  10. 19. atoms w the same # of e-
  11. 23. minimum energy that is required to remove an electron from an atom
  12. 24. energy an atom absorbs or emits
  13. 25. outer level will feel less pull because other e- repulses it
  14. 26. irregular amount of neutrons
Down
  1. 1. evenly mixed
  2. 4. A bond or molecule whose ends have opposite charges
  3. 6. only two e- per orbital
  4. 8. ratio of elements
  5. 9. attraction t solids/liquids(polarity)
  6. 12. energy required to - e- from an atom in the gas phase
  7. 14. photoemission
  8. 15. losee- cation gain e- anion
  9. 18. delocalized e-
  10. 20. energy unit
  11. 21. contains electrons
  12. 22. not evenly mixed