Hey guys, Im new to this forum. So I apologize if this question has been answered in a direct or indirect way on another forum.I'm extremely interested in physics, And Im a very deep thinker. Im currently reading up on String Theory in hope of understanding as much as I can. I really enjoy learning the actual makeup and framework of our universe, and that leads me to my question: All through physics, you learn about atoms that are made up of protons, neutrons, and electrons. Furthermore, you learn that protons have a +1 charge, and electrons have a -1 charge. And obviously these charges allow the atom to be stable. What I'm actually curious about, is what actually is a charge? Ive looked this up on google and have visited many websites without finding an actual answer. I know a charge is a "property" and can't be fully explained, much like a "color." But color is made up of a certain wavelength of light. But as far as what a charge actually is, or where it comes from still baffles me. It seems like you always hear about charges and how they affect the atom. But I'm so curious about what this "charge" actually is. Could someone shed some light on what a charge is? I know how they work and what they do, and I know its a form of electricity. But what is the different between a +1 charge and a -1 charge. If someone could provide an in-depth, detailed answer, I would sincerely and greatly appreciate it!