Protons and neutrons are the two subatomic particle kinds that make up the nucleus. The electrical charge of the neutrons is zero, while that of the protons is positive. The nucleus is inhabited by electrons, a third category of subatomic particle. There is a negative electrical charge on the electrons.
A complicated arrangement of negatively charged electrons packed around a positively charged nucleus in certain shells makes up an atom. The majority of the atom's mass is located in this nucleus, which is made up of protons and neutrons (except for common hydrogen which has only one proton). The size of each atom is similar.
- Three components constitute an atom: The nucleus, located in the heart of the atom, is made up in part of positively charged protons. Uncharged particles called neutrons are the other component of the