Which of the following pairs contain elements with similar atomic radii ?

The number of the followinjg pairs contains elements with similar atomic radii a. Co, Ni , b. Zn, Mo , c. Rh, Ir , d. Hf, Ti

Which of the following pairs does not contain elements with similar radii?

Which of the following pairs of elements have almost similar atomic radii ?

Which of the following pairs of elements have similar atpmic radii?

Which of the following pairs of elements have alomost similar atomic radii ?

Which of the following pairs of elements have alomost similar atomic radii ?

Which of the following pair of group 13 elements have similar atomic radius

Which of the following pairs of atoms have the most similar atomic radii ?

Which of the following pairs contains elements that are chemically dissimilar ?