Chemistry Crossword

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Across
  1. 3. Tells the number of protons.
  2. 4. an element with an electric charge formed formed loss or gain in electrons.
  3. 6. The group to the right of the Transition Metals and to the left of the Metallloids.
  4. 8. Atoms will always react until they have a full shell.
  5. 11. the study of the elements
  6. 12. Most reactive non-metals.
  7. 14. Do not react at all.
  8. 15. Most reactive.
  9. 17. Will never change, because it will become a different element.
  10. 18. the guy who made the periodic table
  11. 19. Do not add mass to the atom
Down
  1. 1. thing that holds all of the elements
  2. 2. Has Hydrogen and Carbon in it.
  3. 5. Has Calcium and Barium.
  4. 7. Add mass to the atom.
  5. 9. The letters of the elements.
  6. 10. The elements on the stair line.
  7. 13. Top group of the 2 that is usually under and do not fit into the Periodic Table.
  8. 15. The bottom group of the 2 that is usually under, and do not fit into, the Periodic Table.
  9. 16. Total number of protons + neutrons.