In the ground state of cobalt atom (Z = 27) t | vedclass

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(D) The electronic configuration of cobalt ($Co$,$Z = 27$) is $[Ar] 3d^7 4s^2$.In the $3d$ subshell,there are $7$ electrons. According to Hund's rule,

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$3$,paramagnetic

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(D) The electronic configuration of cobalt ($Co$,$Z = 27$) is $[Ar] 3d^7 4s^2$.In the $3d$ subshell,there are $7$ electrons. According to Hund's rule,these are filled as: $\uparrow\downarrow, \uparrow\downarrow, \uparrow, \uparrow, \uparrow$.This results in $3$ unpaired electrons.Since the atom contains unpaired electrons,it is paramagnetic.

In the ground state of cobalt atom $(Z = 27)$ there are $.......$ unpaired electrons and thus the atom is $.......$

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