6. ⇒ (MHT CET 2021 20th September Morning Shift )
Which among the following elements has completely filled 4d-orbital?
A. Ag
B. Cd
C. Sc
D. Zr
Correct Option is (B)
CD (Z = 48) ⇒ [Kr] 4d 10 5s 2
Cd has completely filled 4d - orbital.