Chemistry Crossword

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Across
  1. 2. the branch of science that studies chemicals and elements
  2. 4. the part of an atom that is mass-less
  3. 5. Atoms outside of the nucleus determine reactivity. Up and Down on the periodic table
  4. 7. columns on a periodic table
  5. 11. how you determine similar properties
  6. 15. _______ levels is what periods measure on a periodic table
  7. 16. the side on a periodic table that is more stable
  8. 17. the little numbers in a chemical formula
  9. 18. the famous element from superman
  10. 19. the letters in an element
Down
  1. 1. Located in the Nucleus and has a neutral charge
  2. 2. The big number in front of a chemical equation
  3. 3. numbers with decimal points below the symbol
  4. 6. acronym of the unit of measurement to measure atoms
  5. 8. Located in the Nucleus and has a positive charge.
  6. 9. In the ______ cloud and has a negative charge
  7. 10. ______ number the small number over the symbol.
  8. 12. rows on a periodic table
  9. 13. the side on a periodic table that is more reactive
  10. 14. holds all protons and neutrons