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Name: HW#7: Nuclear Radiation 1. An electrically charged atom is called an 2. Complete these beta reactions, which occur in a breeder reactor: a. 3. 4. 5. U 239 92 0 -1 e + ? b. . Np 239 93 0 -1 e+ ? Complete the following fission/fusion reactions: a. 1 0 b. 2 1 n + 235 92 U H + 3 1 Xe + 143 54 Sr + ? 01n 90 38 H 24He + ? Complete these nuclear reactions: a. 230 90 c. 14 6 Th C Ra + ? 226 88 N + ? 14 7 b. 218 85 d. 80 35 At 24He + ? Br Kr + ? 80 36 An archeologist extracts a sample of carbon from an ancient ax handle and finds that it emits an average of 10 beta emissions per minute. The same mass of carbon from a living tree emits 40 betas per minute. Knowing that the half-life of carbon-14 is 5730 years, the age of the ax handle is about: a. b. c. d. 2865 years 5730 years 11460 years 17190 years