Question

Which pair of elements among the following have atomic radii very close to each other

Answer 1

Answer:

lanthanides do not show much difference in atomic radii due to lanthanoid contraction.

transition metals too do not show much change due to increase in effective nuclear charge.

Elements of group 1 and 2 also show similar radii due to diagonal relationship.

Explanation:

Answer 2

Answer:

Be and Mg

Explanation:

Be= 0.089 and Mg= 0.089