Gupta, Riti. "How To Find The Number Of Neutrons, Protons & Electrons For Atoms, Ions & Isotopes"sciencing.com, https://www.sciencing.com/number-electrons-atoms-ions-isotopes-8295619/. 9 March 2020. APA Gupta, Riti. (2020, March 9). How To Find The Number Of Neutrons, Protons & Elec...