Answer : Option D) [tex] Zn^{64}_{30} [/tex]
Explanation : When a positron is getting absorbed it means it will be [tex] e^{+1}_{0} [/tex] so, the [tex] Cu^{64}_{29} [/tex] will get converted;
So, the whole reaction will be;
[tex] Cu^{64}_{29} [/tex] + [tex] e^{+1}_{0} [/tex] ----> [tex] Zn^{64}_{30} [/tex].
This will convert the whole element of Cu will get changed into Zn. As, it absorbs by the positron, the atomic number gets increased from 29 to 30.
