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Assertion-The-element-with-electronic-configuration-Xe-54-4f-1-5d-1-6s-2-is-a-d-block-element-Reason-The-last-electron-enters-the-d-orbital-




Question Number 23215 by Tinkutara last updated on 27/Oct/17
Assertion: The element with electronic  configuration [Xe]^(54)  4f^1  5d^1  6s^2  is a d-  block element.  Reason: The last electron enters the d-  orbital.
$$\boldsymbol{\mathrm{Assertion}}:\:\mathrm{The}\:\mathrm{element}\:\mathrm{with}\:\mathrm{electronic} \\ $$$$\mathrm{configuration}\:\left[\mathrm{Xe}\right]^{\mathrm{54}} \:\mathrm{4}{f}^{\mathrm{1}} \:\mathrm{5}{d}^{\mathrm{1}} \:\mathrm{6}{s}^{\mathrm{2}} \:\mathrm{is}\:\mathrm{a}\:{d}- \\ $$$$\mathrm{block}\:\mathrm{element}. \\ $$$$\boldsymbol{\mathrm{Reason}}:\:\mathrm{The}\:\mathrm{last}\:\mathrm{electron}\:\mathrm{enters}\:\mathrm{the}\:{d}- \\ $$$$\mathrm{orbital}. \\ $$

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