Hi. I'm new here. I'm trying to understand some basic concepts on the sub-atomic level and I hope that the good folks here will be able to help me out.
The sun is composed mostly of Hydrogen which is made up of one proton and one electron. Via nuclear fusion, the sun turns hydrogen into helium. Helium is composed of two electrons, two protons and two neutrons. Where did the neutrons come from? If you combine two hydrogens, I can understand the two electrons and the two protons but I don't understand where the two neutrons came from.
Thanks in advance for your replies.