The total number of neutrons in dipositive zi | vedclass

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Question

(B) The atomic number of zinc $(Zn)$ is $30$.For the isotope with mass number $A = 70$,the number of neutrons is calculated as $N = A - Z$.$N = 70 - 3

Vedclass · Accepted Answer

$40$

Vedclass · Answer

(B) The atomic number of zinc $(Zn)$ is $30$.For the isotope with mass number $A = 70$,the number of neutrons is calculated as $N = A - Z$.$N = 70 - 30 = 40$.The formation of a dipositive ion $(Zn^{2+})$ involves the loss of electrons from the valence shell,which does not affect the number of protons or neutrons in the nucleus.Therefore,the number of neutrons remains $40$.

The total number of neutrons in dipositive zinc ions with mass number $70$ is

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