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JEE Main 202125 JulyEvening Shift

Exam: JEE Main
Year: 2021
Date: 25 July
Shift: Evening Shift
Subject: Chemistry
Chapter: d and f Block Elements

JEE Main 2021 · 25 July · Evening Shift · Chemistry · d and f Block Elements

Number of electrons present in 4f orbital of Ho ^ 3 + ion is...

Number of electrons present in

4f

orbital of

{Ho}^{3 +}

ion is ________ (Given Atomic No. of Ho =67)

Correct answer

0

Step-by-step solution

$Ho = [ Xe ] 4{f}^{11}6{s}^{2}$

${Ho}^{3 +} = [ Xe ] 4{f}^{10}$

so number of ${e}^{-}$ present in $4f$ is $10 .$

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