What would be the product if an electron was added to the nucleus of an atom of #""_15^24P#?
I'm not sure this reaction occurs in nature, since it involves an electron combining with a proton to form a neutron. The reverse does occur. But if it did occur, the product would be
The total number of nucleons (neutrons plus protons) remains constant at 24. The number of protons decreases by 1.