It is a false statement that vanadium atom has fewer unpaired electrons than the nickel atom.
The transition elements occupy groups 3 to 12 in the periodic table. The transition elements are known to have incompletely filled d orbitals as such they have color due to d - d transitions.
The electron configuration of nickel is; [Ar] 3d⁸ 4s² while the electron configuration of vanadium is; [Ar]3d3 4s2. We can clearly see that vanadium has three unpaired electrons while nickel has two unpaired electrons. Hence, it is a false statement that vanadium atom has fewer unpaired electrons than the nickel atom.
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The false statement below concerning period 4 transition elements is C. The vanadium atom has fewer unpaired electrons than the nickel atom.
Group 4 refers to the second group of transition metals that we've in the periodic table. It should be noted that group 4 elements are hard, refractory metals.
The period 4 elements include titanium, scandium, vanadium chromium, manganese, cobalt, nickel, copper, etc. It should be noted that the vanadium atom doesn't have fewer unpaired electrons than the nickel atom.
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