Question

What is the Atomic And Ionic Radii Of Niobium And Tantalum

Answer 1

It was named Columbium (Cb) at the time of its discovery in 1801. ... Niobium (Nb) and tantalum (Ta)Tantalum (Ta), much like Zr and Hf, have nearly identical atomic radii. The radii of the ions (Nb+5 and Hf+5) are also almost identical which explains in part the fact that the chemistry of these two elements is so similar

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