What is the role of hydrogen and helium nuclei in the synthesis of elements in stars please help!!?
In their main sequence, stars fuse hydrogen nuclei together to form helium. In this process, a lot of energy is released (which is why the sun is so bright and warm even though it is 93 million miles away). However, stars will eventually run out of hydrogen and begin to fuse helium together to form heavier elements. I think the heaviest element that can be made in a star is iron. All heavier elements are synthesized from a supernova.
