19
QuizMultiple Choice

Balancing Nuclear Reactions — Quiz

Question 19 • Physical Science

Which represents the balanced nuclear equation for the beta plus decay of C−11 ?

Answer
A
6 to the 11th power cap c rightarrow 7 to the 11th power cap n plus negative 1 to the 0 power e
B
6 to the 11th power cap c rightarrow 5 to the 11th power cap b plus negative 1 to the 0 power e
C
6 to the 11th power cap c rightarrow 7 to the 11th power cap n plus plus 1 to the 0 power e
D
6 to the 11th power cap c rightarrow 5 to the 11th power cap b plus plus 1 to the 0 power e

Explanation

In beta plus decay, a proton changes into a neutron and emits a positron, written as ⁰₊₁e. The mass number stays 11, while carbon’s atomic number decreases from 6 to 5, producing boron-11. Thus the balanced equation is ¹¹₆C → ¹¹₅B + ⁰₊₁e, which is choice C.

AI-written and checked against the verified answer.

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