ઉમદા વાયુ સંરચના ધરાવતા નીચે આપેલામાંથી આયનોની કુલ સંખ્યા_______________છે.

$ \mathrm{Sr}^{2+}(\mathrm{Z}=38), \mathrm{Cs}^{+}(\mathrm{Z}=55), \mathrm{La}^{2+}(\mathrm{Z}=57) \mathrm{Pb}^{2+} $

$ (\mathrm{Z}=82), \mathrm{Yb}^{2+}(\mathrm{Z}=70) \text { and } \mathrm{Fe}^{2+}(\mathrm{Z}=26)$

Question

ઉમદા વાયુ સંરચના ધરાવતા નીચે આપેલામાંથી આયનોની કુલ સંખ્યા_______________છે.

$ \mathrm{Sr}^{2+}(\mathrm{Z}=38), \mathrm{Cs}^{+}(\mathrm{Z}=55), \mathrm{La}^{2+}(\mathrm{Z}=57) \mathrm{Pb}^{2+} $

$ (\mathrm{Z}=82), \mathrm{Yb}^{2+}(\mathrm{Z}=70) \text { and } \mathrm{Fe}^{2+}(\mathrm{Z}=26)$

JEE MAIN 2024, Diffcult

Download our app for free and get started

Solution

a
$ \text { Noble gas configuration }=\mathrm{ns}^2 \mathrm{np}^6 $

$ {\left[\mathrm{Sr}^{2+}\right]=[\mathrm{Kr}\rfloor} $

$ {\left[\mathrm{Cs}^{+}\right]=[\mathrm{Xe}]} $

$ {\left[\mathrm{Yb}^{2+}\right]=[\mathrm{Xe}] 4 \mathrm{f}^{14}}$

$ {\left[\mathrm{La}^{2+}\right]=[\mathrm{Xe}] 5 \mathrm{~d}^1} $

$ {\left[\mathrm{~Pb}^{2+}\right]=[\mathrm{Xe}] 4 \mathrm{f}^{14} 5 \mathrm{~d}^{10} 6 \mathrm{~s}^2} $

$ {\left[\mathrm{Fe}^{2+}\right]=[\mathrm{Ar}] 3 \mathrm{~d}^6}$

Download our app
and get started for free