2. Get a Charge Out of Matter Jeopardy Sub-Atomic Awesomeness What the heck? Q & A Reaction Jackson 100 200 300 400 500 600

3. Final Jeopardy Category is: Half-lives

4. Sub-Atomic Awesomeness 100 What particles make up most of the mass of an atom? Answer: Protons & Neutrons

5. Sub-Atomic Awesomeness 200 What particles can be found in the nucleus of an atom? Answer: Protons & Neutrons

6. Sub-Atomic Awesomeness 300 How are neutrons formed? Answer: Protons & electrons fuse together.

7. Sub-Atomic Awesomeness 400 What is an isotope? Answer: An element with a different number of neutrons

8. Sub-Atomic Awesomeness 500 What’s the difference between carbon-12 and carbon-14? Answer: Carbon-14 has two more neutrons

9. Sub-Atomic Awesomeness 600 What sub-atomic particle is referred to as “nuclear glue?” Why? Answer: Neutrons because they hold protons together in the nucleus.

10. What the Heck?100 What the heck is made when carbon and oxygen fuse together? Answer: Silicon

11. What the Heck? 200 1.What the heck happens to the amount of energy produced when the size of particles decrease? Answer: As the size of particles decrease, the amount of energy produced increases.

12. What the Heck? 300 What the heck is a nuclear reaction? Answer: It is a reaction that takes place in the nucleus.

13. What the Heck? 400 What the heck is the difference between fusion and fission? Answer: Fusion is when forces PUSH nuclei together. Fission is when forces PULL nuclei apart.

14. What the Heck? 500 What the heck are the answers to these three fusion reactions? –H  He –Ne + He  ? –C + O  ? Answer: –4H  He –Mg –Si

15. What the Heck? 600 What the heck are answers to these two fission reactions? U-236 undergoes fission producing Sr-90, 3 neutrons, and what other product? U-236 undergoes fission producing Ba-142, 3 neutrons, and what other product? Answer: –Xe-143 –Kr-91

16. Q & A 100 Why does temperature in the center of stars have to be extremely high for fusion to occur? Answer: So atoms can move fast enough to overpower repelling forces in the nucleus.

17. Q & A 200 1.How is the atomic mass or weight calculated? Answer: Adding the protons and neutrons together.

18. Q & A 300 If you had 20 grams of sodium chloride, which isotope would contribute more atoms, chlorine-35 or chlorine-37? Explain your reasoning. Answer: Cl-35 because is has a lower mass.

19. Q & A 400 Where would the most dense gases be found inside a star? Explain using a labeled diagram. Answer: Most Dense Least Dense

20. Q & A 500 Thorium-234 has a half-life of 24 days. How many grams of thorium-234 would remain from 100g after 72 days? Answer: 12.5 grams

21. Q & A 600 Are nuclear reactions in stars due to chain reactions? Explain your reasoning. Answer: No, nuclear reactions in stars are due to fusion reactions. Chain reactions only occur during fission reactions.

22. Reaction Jackson 100 1.Beta decay involves the decay of what sub-atomic particle from this particle in the nucleus? Answer: electrons from neutrons

23. Reaction Jackson 200 Alpha decay or alpha emission is the loss of what particular ion? Answer: Helium

24. Reaction Jackson 300 What is a fission reaction? Answer: Forces pulling the nuclei of an atom apart.

25. Reaction Jackson 400 Solve: Th-230 decaying by alpha emission Answer: Ra-226

26. Reaction Jackson 500 Solve: Po-208 decaying by alpha emission Answer: Pb-204

27. Reaction Jackson 600 Solve: Ra-222 decaying by alpha emission Answer: Rn-218

28. Final Jeopardy Caffeine has a half-life of 5 hours and 42 minutes. If you stayed up all night playing Skyrim, drinking 200 mg of caffeine at 1:30 am on March 4, 2012, at what time and date will only 6.25 mg of caffeine remain?

29. Answer 6.25 mg of caffeine will remain at 6:00 am on March 5, 2012