Chemistry

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Across
  1. 5. a kind of bond where electrons are shared
  2. 6. a neutral subatomic particle
  3. 9. a bond where electrons are stolen
  4. 13. positive charged ion
  5. 15. the electrons on the outer most part of an atom
  6. 16. a mixture where one substance is dissolved into another
  7. 17. negative charged ion
  8. 18. two or more atoms chemically bonded
  9. 19. a connection that holds atoms together
Down
  1. 1. a substance of two or more different elements bonded
  2. 2. a repeating and identifiable thing
  3. 3. a bad conductor of electricity
  4. 4. smallest unit of matter
  5. 7. a process where substances change to a new form
  6. 8. a positively charged subatomic particle
  7. 9. a positively or negatively charged particle
  8. 10. An atom with the same amount of protons but different number of neutrons
  9. 11. a negatively charged subatomic particle
  10. 12. a good conductor of electricity
  11. 14. An element with both properties of metals and nonmetals