University:
Eastern Kentucky University
Course:
CHE 111 | General Chemistry
Academic year:

2023
Views:

141

Pages:

2
Author:

5prinzg1s

SCH4U NUCLEAR CHEMISTRY - WORKSHEET 1. When stable, nonradioactive nitrogen in the air is subject to neutron bombardment during a hydrogen bomb explosion, a single neutron is absorbed by the nitrogen nucleus and a proton is emitted (given off). Write a balanced nuclear equation for this reaction and name the other product of the reaction. 14 7N + 10n → 11H + 14 6C 2. A radioactive element, A, with a mass of 212 and atomic number 84, emits an alpha particle and changes into element B. Element B emits a beta particle and is converted to element C. a) Write nuclear equations for the formation of elements B and C. 212 84 Po → 42He + 208 82 Pb → 0 −1e + 208 82Pb 208 83Bi (note that this process is not fast; lead is stable.) b) What are the atomic masses and atomic number of elements A, B and C? Masses are on top; atomic numbers at bottom. c) Name elements A, B and C. Polonium, Lead, and Bismuth. 3. Complete the following nuclear equations and state the general type: a) c) e) b) d) f) 0 0 −1 β or −1 e 120 50 Sn 1H 1 210Tl 81 162Er 68 1n 0 4. Write a balanced nuclear equation for each of the following: a) b) a) b) c) 216At → 85 208 81Tl → 55 25Mn + 4He + 212Bi 2 83 0 208 −1e + 82 Pb 56 1n 0 → 25Mn + γ c) SCH4U 5. Write balanced nuclear equations for the decay of: a) Pa-234 to U-234 b) U-234 to Th-230 c) Th-230 to Ra-226 d) Ra-226 to Rn-222 a) 234 91 Pa b) 234 92 U c) 230Th 90 4 → 226 88 Ra + 2 α d) 226Ra 88 4 → 222 86 Rn + 2 α → 234U 92 + 0 −1 β 4 → 230 90 Th + 2α