Question

How is matter converted into energy in the sun’s core?

A. Helium isotopes decay, releasing energy in the process.
B. Hydrogen nuclei collide and fuse, releasing energy in the process.
C. Hydrogen nuclei collide and fuse, consuming energy.
D. Hydrogen nuclei split apart, releasing energy in the process.

Answer 1

The answer is B! The process released energy because the total mass of the resulting nuclei is less than the mass of the original two nuclei. The leftover mass then becomes becomes energy. :)