Q. Which of the following are $d$-block elements but not regarded as transition elements?
A) Cu, Ag, Au
B) Zn, Cd, Hg
C) Fe, Co, Ni
D) Ru, Rh, Pd
Explanation
(b)
Zn, Cd, Hg are $d$-block elements but not regarded as transition elements because these do not have partially filled $d$-orbitals in their most common oxidation states
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.