1. Tardigrade
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  4. In the ground state of Cu+ the number of shell occupied, sub-shells occupied, filled orbitals and unpaired electrons respectively are

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Q. In the ground state of $Cu^+$ the number of shell occupied, sub-shells occupied, filled orbitals and unpaired electrons respectively are

ManipalManipal 2014

Solution:

${ }_{29} C _{ u }=1 s ^{2}, 2 s ^{2}, 2 p ^{6}, 3 s ^{2}, 3 p ^{6}, 4 s ^{1}, 3 d ^{10}$
$Cu ^{+}=1 s ^{2}, 2 s ^{2}, 2 p ^{6}, 3 s ^{2}, 3 p ^{6}, 3 d ^{10}, 4 s ^{0}$
Total number of shells occupied $=3$
Number of sub-shells occupied $=6$
Number of orbitals filled $=14$
Number of unpaired electrons $=0$