The isotope \(^{65}_{29}Cu^{2+}\) has 27 electrons and 29 protons.
Given:
The isotope of copper with +2 charge and mass number of 65.
To find:
The number of electrons and protons in the given isotope.
Solution
The atomic number of copper = 29
Atomic number = Number of protons
Number of protons in copper atom = 29
Number of electrons in copper atom = 29
The isotope of copper= \(^{65}_{29}Cu^{2+}\)
(A neutral atom has equal number of protons and electrons)
The number of protons in isotope and in parent atom remains same.
Number of proton in \(^{65}_{29}Cu^{2+}\)= 29
Charge on the given copper's isotope ( \(^{65}_{29}Cu^{2+}\)) = +2
Number of electrons \(^{65}_{29}Cu^{2+}\) :
= 29 - 2 = 27
(+2 charge indicates lessor two electrons out of total electrons)
The isotope \(^{65}_{29}Cu^{2+}\) has 27 electrons and 29 protons.
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