Answers Physical Science Nuclear Chemistry — TestQuestion 22

22

QuizMultiple Choice

Nuclear Chemistry — Test

Question 22 • Physical Science

Which represents a balanced nuclear equation?

Answer

A

11 to the 23th power Na rightarrow 12 to the 24th power Mg plus 1 to the 1th power cap h

B

12 to the 23th power Mg rightarrow 12 to the 24th power Mg plus 0 to the 1th power n

C

11 to the 24th power Na rightarrow 12 to the 24th power Mg plus negative 1 to the 0 power e

D

13 to the 24th power Al rightarrow 12 to the 24th power Mg plus negative 1 to the 0 power e

Explanation

A nuclear equation is balanced when the mass numbers and atomic numbers add up to the same totals on both sides. In choice C, the mass numbers are 24 on each side, and the atomic numbers balance because 11 = 12 + (−1). Thus, sodium-24 can produce magnesium-24 and a beta particle, so choice C is balanced.

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