The electronic configurations of four element | vedclass

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(A) $I$ is $Cs$ (alkali metal),which is a strong reducing agent.$II$ is $Lu$ $(Z=71)$,which is a $d-$ block element because the last electron enters t

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$I$ is a strong reducing agent.

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(A) $I$ is $Cs$ (alkali metal),which is a strong reducing agent.$II$ is $Lu$ $(Z=71)$,which is a $d-$ block element because the last electron enters the $5d$ orbital.$III$ is $Br$ (halogen),which has a high electron affinity.$IV$ is $Co$ $(Z=27)$,which is a transition metal and exhibits variable oxidation states.All statements are correct. However,if the question implies identifying an incorrect statement,there might be a typo in the provided options. Based on standard chemistry,all given statements are factually correct.

List-$I$	List-$II$
$(A)$ Ionization enthalpy	$(i)$ $P < Si < Mg < Na$
$(B)$ Metallic character	$(ii)$ $I < N < O < F$
$(C)$ Electron gain enthalpy	$(iii)$ $B < Be < C < O < N$
$(D)$ Electronegativity	$(iv)$ $I < Br < F < Cl$

The electronic configurations of four elements are:
$I. [Xe] \, 6s^1$
$II. [Xe] \, 4f^{14} \, 5d^1 \, 6s^2$
$III. [Ar] \, 4s^2 \, 4p^5$
$IV. [Ar] \, 3d^7 \, 4s^2$
Select the incorrect statement about these elements.

Similar Questions

An element of atomic weight $40$ has $2, 8, 8, 2$ as the electronic configuration. Which one of the following statements regarding this element is not correct?

Which of the following orders is $NOT$ correct with respect to the mentioned properties?

Match the following and select the correct option:
List-$I$ List-$II$
$(A)$ Ionization enthalpy $(i)$ $P < Si < Mg < Na$
$(B)$ Metallic character $(ii)$ $I < N < O < F$
$(C)$ Electron gain enthalpy $(iii)$ $B < Be < C < O < N$
$(D)$ Electronegativity $(iv)$ $I < Br < F < Cl$

Identify the incorrect order.

Which of the following is not correctly matched?

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The electronic configurations of four elements are:$I. [Xe] \, 6s^1$$II. [Xe] \, 4f^{14} \, 5d^1 \, 6s^2$$III. [Ar] \, 4s^2 \, 4p^5$$IV. [Ar] \, 3d^7 \, 4s^2$Select the incorrect statement about these elements.