It is purely called the Atomic Mass
<span>Mass number is the number of protons and neutrons in an atom, and it tells us about the mass of the atom in amu, or atomic mass units. </span>
<span>Atomic mass is the average mass of all the isotopes of a certain type</span>
Ok I’m not gonna do anything with my phone I’m gonna send you a picture
should have paid attention in class and you would've known but sorry i am not sure
