Chemistry final crossword

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Across
  1. 2. leading scientific theory of how the universe began
  2. 6. one complete performance of a periodic process
  3. 8. anything having mass and taking up space
  4. 10. are dark planet-sized regions that appear on the sun
  5. 12. all atoms with more than 82 protons are this
  6. 14. the relative amount of solute in a solution
  7. 17. able to be changed
  8. 18. radiation supporting the Big Bang Theory
  9. 20. atoms of same elements having a different mass
  10. 22. two or more nuclei forced together to make a larger nucleus
  11. 24. all of matter and space
  12. 25. light from the sun
Down
  1. 1. send into the air
  2. 3. the basic unit of matter
  3. 4. something becoming liquid by heating a solid
  4. 5. table of chemical elements
  5. 7. production and discharge of something, especially gas or radiation
  6. 9. mountain or hill having lava
  7. 11. type of rock made from cooled magma
  8. 13. having a PH of less than 7
  9. 15. a rearrangement of atoms into new substances
  10. 16. how far is it from start to end of a periodic wave
  11. 19. two protons and two neutrons released by radioactive decay
  12. 21. a fluid state of matter
  13. 23. turning from liquid to solid