Atomic Number And Mass Number Of Ordinary Atoms, Using Helium As An Example. The Atomic Number (Z) Is Also The Number Of Protons (np). The Mass Number (A) Is The Total Number
Atomic notation X A Z X = Symbol (C, Au) A = Atomic Mass Number = #nucleons (Protons + Neutrons) Z = Atomic Number = #protons C 12 6 Carbon A = 12, Z = - ppt download