\(Be^{2+}\) નીચેનામાંથી કયા આયનો સાથે સમઇલેક્ટ્રોનિય છે ?

A \(H^+\)
B \(Li^+\)
C \(Na^+\)
D \(Mg^{2+}\)

Verified Solution

Answer & Solution

Correct Answer

(B) \(Li^+\)

Step-by-step Solution

Detailed explanation

Isoelectronic species contain same number of electrons. \(B e^{2+}\) contains \(2\) electrons. Among the given options, only \(L i^{+}\) contains \(2\) electrons and therefore, it is isoelectronic with \(B e^{2+}\) \(H^{+} \rightarrow\) no eletron \(N a^{+} \rightarrow 10 e^{-}\) \(L i^{+} \rightarrow 2 e^{-}\)

Apply the relevant identity from the chapter and substitute the values established in the previous step, keeping the original constraint in view.

Use the simplified expression to isolate the unknown, then plug the result back into the question setup to confirm the working is internally consistent.

Cross-check against a boundary or limiting case. Both the dimensional balance and the qualitative behaviour at the extreme should agree with the candidate answer.

Combine the steps above to identify the correct option. The remaining choices each fail at least one of the consistency, dimensional, or boundary checks.

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નીચેના કોલમને જોડો અને સાચો વિકલ્પ પસંદ કરો :

કોલમ \(-I\)	કોલમ \(-II\)
\((a)\) તરતી પાંસળીઓ	\((i)\) બીજી અને સાતમી પાંસળીની વચ્ચે આવેલ છે
\((b)\) સ્કંધાગ્ર પ્રવર્ધની	\((ii)\) ભૂજાસ્થિ શીર્ષ
\((c)\) સ્કંધાસ્થિ	\((iii)\) અક્ષક જોડાણ
\((d)\) સ્કંઘઉલૂખલ	\((iv)\) ઉરોસ્થિ સાથે જોડાતી નથી

\((a)\quad(b)\quad(c)\quad(d)\)

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