Question

How does atomic number, mass number, and number of electrons, relate to atomic structure?

Answer 1

Atomic number refers to the number of protons present in the nucleus of an atom while mass number is the sum of the number of protons and neutrons in an atom of an element. For any given atom, the number of electrons are always equal to the number of protons. It is important to note that both the protons and neutrons are found inside the nucleus of an atom and are referred to as nucleons. On the other hand, electrons are located outside the nucleus of an atom.