Atomic structure and the periodic table.

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Across
  1. 3. The added weight of all of the subatomic particles
  2. 6. Left to right on the periodic table
  3. 8. What do valence electrons determine
  4. 10. How well you can mold something
  5. 12. How well something conducts heat or electricity
  6. 14. The outer most electrons
  7. 15. Are found on the right of the periodic table and are dull, brittle, and insulators
  8. 16. Contains protons and neutrons
  9. 18. Rings surrounding the nucleus containing electrons
  10. 19. The amount something shines
  11. 20. A subatomic particle in the nucleus which has a positive charge
Down
  1. 1. Up and down on the periodic table
  2. 2. A table containing the elements
  3. 4. the amount of valence electrons a element has and is used to identify elements
  4. 5. Doesn't conduct heat or electricity
  5. 7. Contains a nucleus and an electron cloud
  6. 9. A subatomic particle that has a negative charge orbiting the nucleus of and atom
  7. 11. Can be pulled into a wire
  8. 13. Are found on the left of the periodic table and are malleable, conductors, have luster, and are ductile.
  9. 15. A subatomic particle in the nucleus which has a neutral charge
  10. 17. Contain some of the properties of metal and some of non-metals