Chapter 10 Nuclear Changes REVIEW.

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Presentation transcript:

Chapter 10 Nuclear Changes REVIEW

1. What is the process in which an unstable atomic nucleus emits charged particles or energy or both? 2. What type of nuclear decay releases energy but not a particle? 3. True or False: All natural radiation is at a level low enough to be safe. 4. What is the half-life of any radioisotope? 5. Which of the following particles is smaller than the rest? a. Electron c. neutron b. Proton d. alpha particle

6. During nuclear fission, great amounts of energy are produced from what? 7. What is an ALPHA particle? 8. What is a BETA particle? 9. What goes in the box and what type of decay? 10. What goes in the box and what type of decay?

11. What is the half-life of a substance if after 100 years, ¼ is undecayed and ¾ has decayed to the new substance? 12. A 64 gram sample of I-131 is tested after 40 days and is found to contain only 2 grams of I-131. What is the half life of I-131? 13. Who developed the theory of special relativity ( E=mc2)? 14. Who made radium available; Radioactivity?

15. Who is responsible for the 1st self-contained nuclear chain reaction? 16. Who was noted for his work with fission? 17. Who developed the Law of conservation of mass? 18. Who was the lady Austrian physicist who related fission to E=mc2