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Question: Answered & Verified by Expert
The nucleus $^{64}_{29}Cu$ accepts an orbital clectron to yield.
ChemistryChemical KineticsWBJEEWBJEE 2018
Options:
  • A $\frac{65}{28} \mathrm{Ni}$
  • B $\frac{64}{30} \mathrm{Zn}$
  • C $\frac{64}{28} \mathrm{Ni}$
  • D $\frac{65}{30} \mathrm{zn}$
Solution:
1801 Upvotes Verified Answer
The correct answer is: $\frac{64}{28} \mathrm{Ni}$
The nucleus $^{64}_{29}Cu$ accepts an orbital electron to yield $^{64}_{28}Ni$. The atomic number of $\mathrm{Cu}$ is 29 , which is equal to the number of electrons and also equal to the number of protons. When $^{64}_{29}Cu$ accepts an orbital electron then electrons subtract from the atomic number, i.e.
$29-1=28$
$$
^{64}_{29}Cu+{ }_{-1} e^{0} \longrightarrow{ }_{28}^{64} \mathrm{Ni}
$$

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