Chemistry final crossword

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Across
  1. 2. microwave type of big bang theory
  2. 3. the basic unit of matter
  3. 5. mountain or hill which having lava
  4. 9. matter and space as a whole
  5. 13. spectrum chemical element or chemical compound
  6. 15. light from the sun
  7. 16. anything having mass and taking up space
  8. 18. a rearrangement of atoms into new substances
  9. 21. atoms of same elements having a different mass
  10. 22. table of chemical elements
  11. 23. having a PH of less than 7
  12. 24. one of states of matter
  13. 25. bang how the universe began
Down
  1. 1. the relative amount of solute
  2. 4. able to be changed
  3. 6. how far is it from starting cycle to ending cycle
  4. 7. fusion when two or more nuclei together
  5. 8. how far something is
  6. 10. are dark planet-sized regions that appear on the sun
  7. 11. one complete performance of a periodic process
  8. 12. lighter elements sometimes have too many neutrons
  9. 14. when water becomes a solid
  10. 17. send into the air
  11. 19. all atoms with more than 82 protons are radioactive
  12. 20. something becomes a liquid by heat
  13. 21. type of rocks