4th Nine Weeks Bonus Crossword

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Across
  1. 3. positively charged ion
  2. 6. the energy required to remove an e- from an atom.
  3. 10. atoms of the same element with different numbers of neutrons.
  4. 11. numbers a set of four variables used to describe the location of elements within an atom.
  5. 15. transfer of electrons between atoms, resulting in cations and anions.
  6. 16. substance that cannot be dissolved to form a solution.
  7. 17. the mass of an atom given in amu.
  8. 18. substance that is dissolved.
  9. 20. the ratio of the error to the actual vale multiplied by 100.
Down
  1. 1. electrons must occupy all of the orbits of a sublevel before pairing begins.
  2. 2. standard unit that stands for 6.02x10^23.
  3. 4. negatively charged ion
  4. 5. substance that does the dissolving.
  5. 7. properties of elements will reoccur in a periodic fashion if they are arranged in order of increasing atomic number.
  6. 8. sharing of electrons by atoms so that all atoms involved achieve a filled valance level.
  7. 9. numbers that are known with complete certainty.
  8. 12. a neutral particle having equal numbers of p+ and e-.
  9. 13. the concave or convex surafse of a liquid.
  10. 14. substance that are volatile easily.
  11. 19. an atom or group of atoms that has either gained or lost e- so that it is no longer electrically neutral.