BALANCING NUCLEAR REACTIONS ASSIGNMENT EXAM 2025 QUESTIONS AND ANSWERS

BALANCING NUCLEAR REACTIONS
ASSIGNMENT EXAM 2025 QUESTIONS
AND ANSWERS


Which form of emission is commonly not written in nuclear equations because they do not
affect charges, atomic numbers, or mass numbers?


alpha particle
beta particle

gamma ray - ANS gamma ray


Which form of decay produces a nucleus similar to the element helium?


alpha particle
beta particle

gamma ray - ANS alpha particle


Radium decays to form radon. Which equation correctly describes this decay?


226/88 Ra → 222/84 Rn + 4/4 He
226/88 Ra → 222/86 Rn + 0/-1 e
226/88 Ra → 222/86 Rn + 0/1 e

226/88 Ra → 222/86 Rn + 4/2 He - ANS 226/88 Ra → 222/86 Rn + 4/2 He


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, Radium decays to form radon.


226/88 Ra → 222/86 Rn + 4/2 He



This type of nuclear decay is called.... - ANS alpha decay


Gold can undergo transmutation. Which equation could correctly describe this radioactive
decay?


185/79 Au → 181/77 Re + 4/2 He
185/79 Au → 181/77 Ir + 4/2 He
185/79 Au → 181/77 Ir + 0/-1 e

185/79 Au → 181/77 Ir + 0/1 e - ANS 185/79 Au → 181/77 Ir + 4/2 He


Gold can undergo transmutation.


185/79 Au → 181/77 Ir + 4/2 He



This type of nuclear decay is called... - ANS alpha decay


Helium decays to form lithium. Which equation correctly describes this decay?


6/2 He → 3/3 Li + 0/-1 e
6/2 He → 6/3 H + 0/-1 e
6/2 He → 6/3 Li + 0/-1 e

6/2 He → 6/3 Li + 0/1 e - ANS 6/2 He → 6/3 Li + 0/-1 e

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