The total spin of an iron (Fe) atom is ...... | vedclass

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(C) The atomic number of iron $(Fe)$ is $26$.The electronic configuration of $Fe$ is $[Ar] 3d^6 4s^2$.In the $3d$ subshell,there are $6$ electrons. Ac

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$\pm 2$

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(C) The atomic number of iron $(Fe)$ is $26$.The electronic configuration of $Fe$ is $[Ar] 3d^6 4s^2$.In the $3d$ subshell,there are $6$ electrons. According to Hund's rule,the distribution is: $1, 1, 1, 1, 1$ (singly occupied) and $1$ (doubly occupied).Number of unpaired electrons $(n)$ = $4$.The total spin $(S)$ is calculated as $n 	imes \frac{1}{2} = 4 	imes \frac{1}{2} = 2$.Therefore,the total spin is $\pm 2$.

The total spin of an iron $(Fe)$ atom is .......

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