Problem: The ground-state electron configuration of an Fe2+ ion is1s2 2s2 2p6 3s2 3p6 3d6. Therefore Fe2+ isa) diamagnetic.b) paramagnetic with one unpaired electron.c) paramagnetic with two unpaired electrons.d) paramagnetic with three unpaired electrons.e) paramagnetic with four unpaired electrons.

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The ground-state electron configuration of an Fe2+ ion is

1s2 2s2 2p6 3s2 3p6 3d6

Therefore Fe2+ is

a) diamagnetic.

b) paramagnetic with one unpaired electron.

c) paramagnetic with two unpaired electrons.

d) paramagnetic with three unpaired electrons.

e) paramagnetic with four unpaired electrons.

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