Which of the following ions has a pseudo-nobl | vedclass

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Question

(A) pseudo-noble gas configuration is defined as an electronic configuration where the outermost shell contains $18$ electrons $(ns^2 np^6 nd^{10})$.F

Vedclass · Accepted Answer

$Cu^{+}$

Vedclass · Answer

(A) pseudo-noble gas configuration is defined as an electronic configuration where the outermost shell contains $18$ electrons $(ns^2 np^6 nd^{10})$.For $Cu$ $(Z=29)$,the ground state configuration is $[Ar] 3d^{10} 4s^1$.When $Cu$ loses one electron to form $Cu^{+}$,the configuration becomes $[Ar] 3d^{10}$.This configuration has $18$ electrons in the outermost shell $(3s^2 3p^6 3d^{10})$,which is characteristic of a pseudo-noble gas configuration.Therefore,$Cu^{+}$ is the correct ion.

Which of the following ions has a pseudo-noble gas electronic configuration?

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