Find number of ions which have pseudo inert gas electronic configuration in their outer most shell : Na + , K + , Cu + , Ca + 2 , Cd + 2 , Zn + 2 , Ga + , Ga + 3

Question

TestHub · Accepted Answer

A pseudo inert gas configuration has 18 electrons in the outermost shell ( $n s^{2} n p^{6} n d^{10}$ ).

Ions with this configuration are:

Cu⁺: $[A r] 3 d^{10}$

Zn²⁺: $[A r] 3 d^{10}$

Ga³⁺: $[A r] 3 d^{10}$

Cd²⁺: $[Kr] 4 d^{10}$

Total: 4 ions.

Chemistry - Complete d-block Question with Solution | TestHub

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