Question

Identify the incorrect statement among the following:
(a) 4f and 5f orbitals are equally shielded.
(b) d-Block elements show irregular and erratic chemical properties among themselves.
(c) La and Lu have partially filled d-orbitals and no other partially filled orbitals.
(d) The chemistry of various lanthanoids is very similar.

Answer 1

(b) d- Block elements show irregular and erratic chemical properties among themselves