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  • The pair showing only  oxidation state is Option: 1 <img alt="\mathrm{Ac \: and \: No}" src

The pair showing only +3 oxidation state is 

Option: 1

\mathrm{Ac \: and \: No}
 


Option: 2

\mathrm{Ac\: and \: Lr}


Option: 3

\mathrm{Cm\: and\: Lr}

 


Option: 4

\mathrm{Cm \: and \: Bk}


Answers (1)

best_answer

The electronic configuration of Actinium \mathrm{(Ac) } and Lawrencium \mathrm{(Lr)} is \mathrm{[Rn]6d^{1}7s^{2}} and \mathrm{[Rn]5f^{14}7s^{1}p^{1}} respectively. Hence, both can release 3 valence electrons. 

Hence option 2 is correct.

Posted by

HARSH KANKARIA

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