Assertion : Atomic size of silver is almost the same as that of gold.
Reason :d-subshell has low penetration power and produces poor shielding.

Options

A. If both (A) and (R) are correct and (R) is the correct explanation of(A).
B. If both (A) and (R) are correct, but(R) is not the correct explanation of (A).
C. If(A) is correct, but (R) is incorrect.
D. If both (A) and (R) are incorrect.

Answer

B

Explanation

Atomic size of silver is almost equal to that of gold due to lanthanoid contraction,