Benchmark One Vocabulary

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Across
  1. 6. characteristic that can be determined without a chemical reaction; end up with same stuff after change
  2. 9. protons + neutrons in an element; larger number
  3. 12. neutral subatomic particle in the nucleus
  4. 13. graphic list of all the elements
  5. 14. mixture that does not settle
  6. 15. evenly mixed
  7. 17. a specific type of atom; defined by # of protons: oxygen, iron, calcium
  8. 18. mixture that will settle
Down
  1. 1. number of protons in an element; defines the element; smaller number
  2. 2. Characteristic that can be determined only with a chemical reaction
  3. 3. unevenly mixed
  4. 4. negatively charged subatomic particle outside the nucleus
  5. 5. basic building block of matter made of 3 subatomic particles-- protons, neutrons, electrons
  6. 7. two or more atoms chemically combined
  7. 8. also known as Atomic symbol; the letters; only one capital letter per element
  8. 10. simplest form of a substance
  9. 11. two or more substances physically combined; can be separated by physical methods
  10. 13. positively charged subatomic particle in the nucleus
  11. 16. center of atom