Nuclear Reactions, Rate of Reactions & Endo/Exothermic Reactions

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Across
  1. 4. Decreasing the space for the same number of particles = More Collisions & Greater Chance of a Reaction
  2. 7. Nuclear Reactions Release ______ Energy Than Chemical Reactions
  3. 13. Related to Heat
  4. 15. Reactants have Less Energy than the Products, Temperature Decreases, Thermal Energy is Absorbed
  5. 17. Each time a nucleus splits, it releases more neutrons, which can go on and cause more reactions to occur and will continue to happen.
  6. 19. The time that it takes half the nuclei in a sample to decay
  7. 20. Means Out
  8. 21. How can the surface area of a solid be increased
  9. 22. Means In
  10. 23. Any reaction involving a solid takes place where
Down
  1. 1. Lowers the Activation Energy
  2. 2. How can Radioactivity be detected
  3. 3. The splitting of a nucleus into smaller nuclei and the release of energy
  4. 5. Increasing Contact Points = More Collisions & Greater Chance of a Reaction
  5. 6. More Particles in the Same Space = More Collisions & Greater Chance of a Reaction
  6. 8. Two smaller nuclei created when a nucleus splits
  7. 9. Occurs when a stable isotope is struck by a neutron
  8. 10. Reactants have More Energy than the Product, Temperature Increases, Thermal Energy is Released
  9. 11. Increasing Energy = Particles move Faster = More Collisions & Greater Chance of a Reaction
  10. 12. An example of an Endothermic Reaction
  11. 14. Process Happens in the Sun’s Core
  12. 16. An example of an Exothermic Reaction
  13. 18. Smaller nuclei join together to form larger nuclei and energy is released