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$100

A. B. C. D. E. F. A. B. C. D. E. F. $100. $100. $100. $100. $100. $100. $200. $200. $200. $200. $200. $200. $300. $300. $300. $300. $300. $300. $400. $400. $400. $400. $400. $400. $500. $500. $500. $500. $500. $500.

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$100

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  1. A

  2. B

  3. C

  4. D

  5. E

  6. F

  7. A B C D E F $100 $100 $100 $100 $100 $100 $200 $200 $200 $200 $200 $200 $300 $300 $300 $300 $300 $300 $400 $400 $400 $400 $400 $400 $500 $500 $500 $500 $500 $500

  8. The atomic number is the number of _____.

  9. protons

  10. The mass number is the sum of _____ and ______.

  11. Protons and neutrons

  12. If there are 128 neutrons in Pb-210, how many neutrons are found in the nucleus of Pb-206?

  13. 124

  14. As the number of protons in the nucleus increases, the repulsive force ________.

  15. Becomes stronger

  16. How does a radioactive isotope that emits an alpha particle change?

  17. Mass number decreases by 4 and atomic number decreases by 2.

  18. What are the components of natural radiation, in order from least to most penetrating?

  19. Alpha, beta, gamma

  20. The beta emission process results in the daughter nucleus differing in what manner from the parent?

  21. Atomic number increases by one.

  22. Of the main types of radiation emitted from naturally radioactive isotopes, which is the most penetrating?

  23. gamma

  24. What particle is emitted when Pu-240 decays to U-236?

  25. Alpha particle

  26. What particle is emitted when P-32 decays to S-32?

  27. Beta particle

  28. Which interaction of nature binds neutrons and protons into nuclei?

  29. strong

  30. Which interaction of nature is weakest?

  31. gravitational

  32. Which interaction of nature depends on the distance through which it acts and is involved in beta decay?

  33. weak

  34. Daily Double!!

  35. Which interaction of nature holds the planets, stars, and galaxies together, even though its effect on elementary particles is negligible?

  36. gravitational

  37. How many half-lives does it take for a radioactive substance to decay to 12.5 percent of its original amount?

  38. 3

  39. Radium-226 decays to radon-222 by emitting _______.

  40. Alpha particles

  41. At this time, all nuclear reactors operate through __________.

  42. Fission only

  43. Which interaction of nature binds atoms and molecules by attracting unlike charges and repulsing like charges?

  44. electromagnetic

  45. Which of these particles are classified as hadrons?a) leptonsb) electronsc) mesonsd) neutrinos

  46. c) mesons

  47. Which of the following is an example of a baryon?a) mesonb) electronc) leptond) proton

  48. d) proton

  49. Which process generates energy in the Sun?

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