Answer
The ground-state electron configurations of the first-row transition metals are as follows:
Scandium (Sc) : $[Ar]3d^{1}4s^{2}$
Titanium (Ti): $[Ar]3d^{2}4s^{2}$
Vanadium (V): $[Ar]3d^{3}4s^{2}$
Chromium (Cr): $[Ar]3d^{5}4s^{1}$
Manganese (Mn): $[Ar]3d^{6}4s^{2}$
Iron (Fe): $[Ar]3d^{6}4s^{2}$
Cobalt (Co): $[Ar]3d^{7}4s^{2}$
Nickel (Ni): $[Ar]3d^{8}4s^{2}$
Copper (Cu): $[Ar]3d^{10}4s^{1}$
Zinc (Zn): $[Ar]3d^{10}4s^{2}$
Work Step by Step
The ground-state electron configurations of the first-row transition metals are as follows:
Scandium (Sc) : $[Ar]3d^{1}4s^{2}$
Titanium (Ti): $[Ar]3d^{2}4s^{2}$
Vanadium (V): $[Ar]3d^{3}4s^{2}$
Chromium (Cr): $[Ar]3d^{5}4s^{1}$
Manganese (Mn): $[Ar]3d^{6}4s^{2}$
Iron (Fe): $[Ar]3d^{6}4s^{2}$
Cobalt (Co): $[Ar]3d^{7}4s^{2}$
Nickel (Ni): $[Ar]3d^{8}4s^{2}$
Copper (Cu): $[Ar]3d^{10}4s^{1}$
Zinc (Zn): $[Ar]3d^{10}4s^{2}$
