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topic16 - 251/98 Cf 2n 131/54 Xe(A 118/42 Mo(B 118/44 Ru(C...

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Nuclear Chemistry Worksheet Chapter 30 Do problems 26 and 32 before trying the problems below. Questions 1-7 below are from old AP Exams. 1. When 214/84 Po decays, the emission consists consecutively of an α particle, the two β particles, and finally another α particle. The resulting stable nucleus is (A) 206/83 Bi (B) 210/83 Bi (C) 206/82 Pb (D) 208/82 Pb (E) 210/81 Tl Answer: C 2. The radioactive decay of 14/6 C to 14/7 N occurs by the process of: (A) beta emission (B) alpha emission (C) positron emission (D) electron capture (E) neutron capture Answer: A 3. For the types of radiation given, which of the following is the correct order of increasing ability to penetrate a piece of lead? 4. What is the missing product in the nuclear reaction represented below?
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Unformatted text preview: 251/98 Cf 2n + 131/54 Xe + ____ (A) 118/42 Mo (B) 118/44 Ru (C) 120/42 Mo (D) 120/44 Ru (E) 122/46 Pd Answer: B 5. Correct statements about alpha particles include which of the following? I. They have a mass number of 4 and a charge of +2. II. They are more penetrating than beta particles. III. They are helium nuclei (A) I only (B) III only (C) I and II (D) I and III (E) II and III Answer: d 6. The nuclide 249/96 Cm is radioactive and decays by the loss of one beta particle. The product nuclide is : (A) 245/94 Pu (B) 245/95 Am (C) 248/96 Cm (D) 250/96 Cm (E) 249/97 Bk Answer: E 7. If 87.5 percent of a sample of pure I-131 decays in 24 days, what is the half-life of I-131? (A) 6 days (B) 8 days (C) 12 days (D) 14 days (E) 21 days Answer: B...
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