Which transition metal series includes elements like Hafnium (Hf), Tantalum (Ta), and Tungsten (W)? - d and f BLOCK ELEMENTS Quiz | GKFix.in

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Question

Which transition metal series includes elements like Hafnium (Hf), Tantalum (Ta), and Tungsten (W)?

A. 3d series
B. 4d series
C. Lanthanide series
D. 5d series