In the proton-proton cycle, .007 of the mass ends up as energy, not helium.

Question

Quizplus · Accepted Answer

In the proton-proton cycle, about 0.7% of the mass is converted into energy through nuclear fusion, primarily in the form of gamma rays. The remaining mass is converted into helium nuclei. Therefore, .007 (0.7%) of the mass does not end up as helium but as energy. This statement is true. In the proton-proton cycle, a small amount of the mass is converted into energy through the process of nuclear fusion, but most of the mass is converted into helium.

In the Proton-Proton Cycle