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Calcium-39 Undergoes Positron Decay

Question 35

Multiple Choice

Calcium-39 undergoes positron decay. Each positron carries 5.49 MeV of energy. How much energy will be emitted when 0.0025 mol of calcium-39 decays?

A) 13.2 kJ
B) 1.32 * 10⁴ kJ
C) 1.32 *10⁶ kJ
D) 1.32 * 10⁹ kJ
E) None of these choices is correct.

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