Chemistry

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Across
  1. 2. same number of protons different number of neutrons
  2. 5. heat exits
  3. 7. nothing new or different is formed
  4. 9. poor conductors of heat and electricity
  5. 10. negative charge
  6. 12. good conductors of heat and electricity
  7. 13. a new substance is made through forming or breaking
Down
  1. 1. heat enters
  2. 3. organizes elements in a specific way
  3. 4. positive charge
  4. 6. metal is...
  5. 8. nonmetals are.....
  6. 9. neutral charge
  7. 11. smallest unit of life