It Is Often Possible to Use Atomic Masses When Calculating

Multiple Choice

It is often possible to use atomic masses when calculating the binding energy of a nucleus. This is not true for calculating the Q value for the e⁺ decay process since

A) the electron masses do not cancel.
B) a positron is an antiparticle.
C) the electron masses cancel.
D) the mass of a positron cannot be neglected when compared to the mass of a nucleus.
E) none of the above.