Structure Of Matter

12345678910111213141516171819
Across
  1. 4. shows the number of atoms involved
  2. 7. shows the number of molecules involved
  3. 9. A pure substance made up of only one type of atom
  4. 11. 2 or more elements combine
  5. 14. made when 2 or more atoms join together
  6. 15. 1-3 letter abbreviation that represents the type of atom
  7. 16. negativity charged subatomic particle
  8. 17. subatomic particles located in the nucleus
  9. 18. A single substance that has a definite composition
  10. 19. anything with volume or mass
Down
  1. 1. chemical symbols with subscripts and coefficients combined to represent molecules
  2. 2. super small particles
  3. 3. number of protons within an atom
  4. 5. organization tool for each element
  5. 6. atom that has an equal number of protons and neutrons
  6. 8. average mass of protons and neutrons
  7. 9. the location outside the nucules
  8. 10. smallest particle or an element
  9. 12. positively charged particle
  10. 13. center of the atom