Chemistry Crossword Study Guide

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Across
  1. 3. carries a positive charge
  2. 5. this cannot be broken down smaller, smallest in the universe
  3. 6. carries a negative charge
  4. 7. energy absorbed to cool down
  5. 8. substance being changed in a chemical reaction
  6. 10. substance that is naturally formed or manmade
  7. 11. mass of the element
  8. 14. anything can change into the three states of matter
  9. 17. most elements are this
  10. 19. column of elements, starts top left of table (1-18)
  11. 20. center of an atom
  12. 21. two or one letters telling the element name
  13. 22. unique conducting properties, in most computers
  14. 23. carries a neutral charge
  15. 24. rows of elements, starts far left of table (1-7)
  16. 25. set of protons/electrons (2,8,8,2)
Down
  1. 1. energy released in a form of heat
  2. 2. outer most electron
  3. 3. substance manufactured for sale
  4. 4. smallest part of any chemical property
  5. 9. these are on the far right of the table, not reactive to other elements ex. Helium
  6. 12. two or more elements combined together to make one
  7. 13. creator of the periodic table
  8. 15. number of protons/electrons
  9. 16. elements that are not metals
  10. 18. a coating of another substance