Science Review

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Across
  1. 5. absorption of heat
  2. 7. number of protons in the nucleus
  3. 8. have properties of both metals and metalloids
  4. 9. any of the gaseous elements on the periodic table
  5. 11. outermost energy level of an atom
  6. 16. rule, number of atoms on both sides of the equation must be the same
  7. 19. form of matter that cannot be further broken down
  8. 20. central part of an atom or cell
  9. 21. shiny, ductile, malleable
  10. 22. result of the action or process
  11. 23. positive electric charge
Down
  1. 1. can't be broken down into a simpler substance, on the perodic table
  2. 2. created The Periodic Table of Elements
  3. 3. negative electric charge
  4. 4. energy level or shell
  5. 6. a substance that comes out a solid as the solution
  6. 9. suggested the idea that electrons move from one orbital to another in large steps
  7. 10. dull, poor conductor of electricity
  8. 12. release of heat
  9. 13. number of protons and neutrons in the atom
  10. 14. substance that goes through a change during the reaction
  11. 15. made of up of two or more separate elements
  12. 17. atoms that are attracted to one another and bond this
  13. 18. neutral electric charge