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Write the electronic configuration of the following and report the number of unpaired electron in each
a. `Mn^(2+)` b.`Cr^(2+)` c`Fe^(2+)` d.`Ni^(2+)` e.`CI^(2+)` f.`Zn^(2+)` g.`Fe^(2+)` h`Na` i.`Mg` .j`Cr(3+)`

Text Solution

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Electronic configuration `" "` no. of unpaired electrons.
`a. ._(24)(Mn)^(4+):1s^(2)2s^(2) 2p^(6),3s^(2)3d^(3)" "3`
b. `._(24)Cr^(2+):1s^(2),2s^(2) 2p^(6),3s^(2)3p^(6)3d^(4)" "4`
c. `._(28)Ni^(2+):1s^(2),2s^(2)2p^(6),3s^(2)3p^(6)3d^(8)" "2`
d. `.^_(30)Zn^(2+):1s^(2),2s^(2)2p^(6),3s^(2)3p^(6)3d^(10)" "0`
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