Chemistry terms

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Across
  1. 3. / positively charged particle in the nucleus of an atom
  2. 4. / Shape of container
  3. 5. number / Average amount of mass that the element has
  4. 7. / A molecule made of one type of atom
  5. 8. / A mixture of substances that look the same
  6. 9. / Anything with mass or volume
  7. 10. / No shape
  8. 12. / Holds shape
  9. 13. / Neutrally charged particle in the nucleus of an atom
  10. 14. / A molecule made of more than one type of atom
Down
  1. 1. / Two or more chemically combined atoms
  2. 2. / Two or more physically combined atomsom
  3. 6. number / Number of protons
  4. 7. / Negatively charged particle in the nucleus of an atom
  5. 8. / A mixture of visibly different substances
  6. 11. / Building block of life