Which particles reside in the atomic nucleus?

Which particles reside in the atomic nucleus?

• A. Protons and Neutrons
• B. Electrons and Protons
• C. Electrons and Neutrons
• D. Protons Only

Answer: (A)

Inside the nucleus are protons, which carry positive charge, and neutrons, which have no charge. They make up almost all of the atom’s mass. Electrons orbit the nucleus in surrounding space and are held there by the attraction to the protons. Because electrons stay outside the nucleus, they aren’t part of it. So, the particles that reside in the atomic nucleus are protons and neutrons.

Inside the nucleus are protons, which carry positive charge, and neutrons, which have no charge. They make up almost all of the atom’s mass. Electrons orbit the nucleus in surrounding space and are held there by the attraction to the protons. Because electrons stay outside the nucleus, they aren’t part of it. So, the particles that reside in the atomic nucleus are protons and neutrons.