Chemistry

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Across
  1. 4. when one substance is dissolved into another
  2. 7. ability to allow heat and electricity to flow
  3. 10. most reactive element in group 1A
  4. 11. number of protons in an atom
  5. 13. type of electron on outermost energy level
  6. 15. total of protons and neutrons in an atom
  7. 16. positively charged particle in an atom
  8. 17. type of chemical bond that shares electrons
  9. 19. type of chemical bond that transfers electrons
  10. 20. a negatively charged ion
Down
  1. 1. ability of a substance to react
  2. 2. most reactive element in group 7A
  3. 3. a mixture that the different parts cant be seen
  4. 5. neutrally charged particle in an atom
  5. 6. negatively charged particle in an atom
  6. 8. center of an atom that is positively charged
  7. 9. a mixture that the different parts can be seen
  8. 12. ability to be hammered without shattering
  9. 14. thickness of a liquid
  10. 18. a positively charged ion