Chemistry

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Across
  1. 1. charged particle
  2. 3. type of change that transforms something into something else
  3. 4. solid form of water
  4. 9. made of 2 or more molecules
  5. 10. atoms with the same atomic number but with a different mass
  6. 12. 2 or more atoms combined
  7. 15. fats,wax,cholesterol or steriods
  8. 16. made up of sugars
  9. 18. unable to cut
  10. 20. type of bond that shares electrons
Down
  1. 2. makes up of DNA and RNA
  2. 5. type of bond that gives or receives electrons
  3. 6. made up of amino acids
  4. 7. has no charge and it is in the nucleus of an atom
  5. 8. contains only 1 type of atom
  6. 11. type of change that changes the properties of matter
  7. 13. Center of the atom
  8. 14. positively charged ions
  9. 17. negatively charged particle
  10. 19. the atomic _______ is the total number of protons and neutrons in the nucleus