In this question, the most probable answer that you would get would be that it depends. It depends on what kind of element are we talking about here. What is important to remember about these is that the number of electrons must always be equal to the number of protons. To get the numbers of electrons and protons of a certain element, just locate the atomic number of the said element. The number of protons is equal to the atomic number and the number of electrons is equal to the number of protons which is equal to the atomic number. If neutrons were to be added in the picture, just take the atomic weight of the element then round it off to the nearest whole number to get its mass number. Subtract the number of protons to the mass number and the difference would be the number of neutrons.
