Write the electronic configuration of :- ${M n}^{+ 2}, {F e}^{+ 2}$

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Solution

${M n}^{+ 2} \to$
Manganese has the atomic no. 25 and its electronic configuration is $[A r] 4 s^{2} 3 d^{5}$ .
$∴$ Electronic configuration of ${M n}^{+ 2} = [A r] 3 d^{5}$
${F e}^{+ 2} \to$
Fe has the atomic no. 26 and its electronic configuration is $[A r] 4 s^{2} 3 d^{6}$ .
$∴$ Electronic configuration of ${F e}^{+ 2} = [A r] 3 d^{6}$

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Write the electronic configuration of :- Mn+2,Fe+2

Mn+2→Manganese has the atomic no. 25 and its electronic configuration is [Ar]4s23d5.∴ Electronic configuration of Mn+2=[Ar]3d5Fe+2→Fe has the atomic no. 26 and its electronic configuration is [Ar]4s23d6.∴ Electronic configuration of Fe+2=[Ar]3d6

Write the electronic configuration of :- ${M n}^{+ 2}, {F e}^{+ 2}$