The CORRECT ionisation energy order is | vedclass

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Question

$\mathrm{Zn}=[\mathrm{Ar}] 3 \mathrm{d}^{10} 4 \mathrm{s}^{2} \Rightarrow \mathrm{Zn}^{+} \Rightarrow[\mathrm{Ar}] 3 \mathrm{d}^{10} 4 \mathrm{s}^{1}$

Vedclass · Accepted Answer

$Zn^+ > Ca^+ > Cr^+$

Vedclass · Answer

$\mathrm{Zn}=[\mathrm{Ar}] 3 \mathrm{d}^{10} 4 \mathrm{s}^{2} \Rightarrow \mathrm{Zn}^{+} \Rightarrow[\mathrm{Ar}] 3 \mathrm{d}^{10} 4 \mathrm{s}^{1}$

$\mathrm{Ca}=[\mathrm{Ar}] 4 \mathrm{s}^{2} \Rightarrow \mathrm{Ca}^{+} \Rightarrow[\mathrm{Ar}] 4 \mathrm{s}^{1}$

$\mathrm{Cr}=[\mathrm{Ar}] 3 \mathrm{d}^{5} 4 \mathrm{s}^{1} \Rightarrow \mathrm{Cr}^{+} \Rightarrow[\mathrm{Ar}] 3 \mathrm{d}^{5}$

$\mathrm{Cu}=[\mathrm{Ar}] 3 \mathrm{d}^{10} 4 \mathrm{s}^{1} \Rightarrow \mathrm{Cu}^{+} \Rightarrow[\mathrm{Ar}] 3 \mathrm{d}^{10}$

The $CORRECT$ ionisation energy order is

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