Across
- 3. atomic nuclei with a positive electric charge radioactive process by which an unstable
- 4. matter and space as a whole
- 6. all atoms with more than 82 protons are radioactive
- 9. fusion when two or more nuclei together
- 10. one of states of matter
- 12. how far is it from starting cycle to ending cycle
- 15. bang how the universe began
- 16. when water becomes a solid
- 17. something becomes a liquid by heat
- 18. type of rocks formed from frozen magma
- 20. one of the complete performance of a periodic process
- 22. piece of big bang theory
- 24. atoms of same elements having a different mass
- 25. light from the sun
Down
- 1. particle with a charger of negative electricity
- 2. shaking of the ground sometimes
- 5. are dark planet-sized regions that appear on the sun
- 7. table of chemical elements
- 8. having a PH of less than 7
- 11. greatest or the highest amount
- 13. spectrum chemical element or chemical compound
- 14. lighter elements sometimes have too many neutrons
- 19. the relative amount of solute
- 21. microwave type of big bang theory
- 23. mountain or hill which having lava