A radioactive nuclide emits a β-particle. The atomic number (proton number) of the nucleus number of ______...? Mcqs

A radioactive nuclide emits a β-particle. The atomic number (proton number) of the nucleus number of ______...?

(A) Stays the same

(B) Decreases by 2

(C) Increases by 1

(D) Decreases by 4