Question

define the nuclear reaction that produces energy from sun and stars?

Answer 1

nuclear fission= in this reaction helium atom combines to form a big hydrogen atom which produces a lot of heat energy.

Answer 2

Answer:

In the Sun, the nuclear reaction which occurs is called the proton-proton cycle, in which four Hydrogen atoms are combined in a series of reactions to form one Helium atom; this chain of reactions also produces energy (in the form of gamma rays) and some other particles called neutrinos..