Question

Pd has exceptional outer electronic configuration as $4d^{10},55{}^{\circ }$ . It belongs to

• A. 4th period, group 11
• B. 4th period, group 10
• C. 6th period, group 9
• D. 3th period, group 16

Answer 1

Answer: (B)

The exceptional outer electronic configuration of Pd suggest that, in principle its configuration should have been $4d^{8}5s^2$ . As such it lies in 5th period and group 10.