(23) The first five steps of the californium-252 decay chain consist of three a-decay steps, followed by two B-decay steps. What daughter nuclide is present at the end of these five decay steps? (A) Plutonium-236 (B) Curium-248 (C) Thorium-240 (D) Uranium-240 (E) Plutonium-240

Chemistry for Engineering Students
4th Edition
ISBN:9781337398909
Author:Lawrence S. Brown, Tom Holme
Publisher:Lawrence S. Brown, Tom Holme
Chapter14: Nuclear Chemistry
Section: Chapter Questions
Problem 14.32PAE
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**Nuclear Chemistry Practice Problems**

**23.** The first five steps of the californium-252 decay chain consist of three α-decay steps, followed by two β-decay steps. What daughter nuclide is present at the end of these five decay steps?

**Options:**
(A) Plutonium-236  
(B) Curium-248  
(C) Thorium-240  
(D) Uranium-240  
(E) Plutonium-240

**24.** The gold-plating of a ceramic figurine requires a total of 2.78 g of solid gold. If the current being used is 12.7 amperes, how many minutes will it take to plate the gold figurine? You may assume that there is sufficient concentration of gold cation to complete the process.

**Options:**
(A) 1.79  
(B) 1056  
(C) 5.36  
(D) 68.1  
(E) 4.57
Transcribed Image Text:**Nuclear Chemistry Practice Problems** **23.** The first five steps of the californium-252 decay chain consist of three α-decay steps, followed by two β-decay steps. What daughter nuclide is present at the end of these five decay steps? **Options:** (A) Plutonium-236 (B) Curium-248 (C) Thorium-240 (D) Uranium-240 (E) Plutonium-240 **24.** The gold-plating of a ceramic figurine requires a total of 2.78 g of solid gold. If the current being used is 12.7 amperes, how many minutes will it take to plate the gold figurine? You may assume that there is sufficient concentration of gold cation to complete the process. **Options:** (A) 1.79 (B) 1056 (C) 5.36 (D) 68.1 (E) 4.57
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