InterviewSolution
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InterviewSolution
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While dealing with multielectron atoms or ions, we must use the concept of effective nuclear charged, `Z_(eff)` which is calculated by the formulaA. `Z_(eff) = Z + sigma`B. `Z_(eff) = Z//sigma`C. `Z_(eff) = Z - sigma`D. `Z_(eff) = Zsigma^(2)` |
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Answer» Correct Answer - C `Z_(eff)` is taken to be equal to the actual nuclear charge `(Z)` minus the screening or shielding) constant, `sigma`, of the inner screening electrons. The attraction of the outermost electrons by the nucleus is partly counterbalanced by the repulsion of teh outermost electrons by the electrons in the inner shell. |
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