Which of the following isotopes is NOT a potential probe of the first three minutes of the Universe's history?

Question

Quizplus · Accepted Answer

Deuterium, helium-3, and lithium-7 were all produced in significant quantities during the first three minutes of the Universe's history, and thus their abundances can provide valuable information about that period. Carbon-13, on the other hand, is formed via a different process and its abundance is not as sensitive to the conditions of the early Universe. Therefore, it is not a potential probe of the first three minutes of the Universe's history.

Which of the Following Isotopes Is NOT a Potential Probe