The structure of an atom is an atom consists of a nucleus and a number of electrons present around the nucleus. All the three charges have a mass value and the mass of protons and neutrons together gives the mass of the nucleus i.e. the atomic mass of the element. The protons and neutrons make up the nucleus of the atom, which is surrounded by the electrons belonging to the atom. The atomic number of an element describes the total number of protons in its nucleus. Let's know more about Atomic Structure.
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