Suppose a star is undergoing a nuclear reaction. what happens to the elements around the star as it begins to emit more and more electromagnetic radiation? the lighter elements are pushed farther away than the rocky materials. the rocky materials are broken down into smaller particles. the rocky materials are pulled in by the electromagnetic radiation. the lighter elements are burned up by the electromagnetic radiation.

I think the correct answer would be the third option. As the elements around the star begins to emit more and more electromagnetic radiation, the rocky materials are pulled in by the electromagnetic radiation. They are being drawn closer to the star and there would be a very high chance of a nuclear fusion could happen. The pressure and the temperature in a star is so high that it could allow nuclear fusion to happen. As a matter of fact, most of the life of a start is made from hydrogen nuclei fusing together forming a helium nuclei. As it runs out of the hydrogen nuclei, it would fuse other nuclei forming other elements.