In group 1 of the periodic table three elements X, Y and Z have atomic radii 133 pm, 95 pm and 65 pm respectively. Giving a reason, arrange them in the order of increasing atomic number in the group.

Options

A. V
B. Cr
C. Nb
D. Mo

Answer

B

Explanation

Check the positions of the given elements from periodic table and use the rules of size i.e. as we go across the periodic table size decreases and as we go down the periodic table size increases.