Question
Chemistry Question on Some Applications of d- and f-Block Elements
General electronic configuration of lanthanides is
A
(n – 2) f 1–14 (n – 1) s2 p6 d0–1 ns2
B
(n – 2) f 10–14 (n – 1) d0–1 ns2
C
(n – 2) f 0–14(n – 1) d10 ns2
D
(n – 2) d0–1 (n – 1) f 1–14 ns2
Answer
(n – 2) f 1–14 (n – 1) s2 p6 d0–1 ns2
Explanation
Solution
The correct option is (A) : (n – 2) f 1–14 (n – 1) s2 p6 d0–1 ns2
n lanthanides (At no. of elements 58 to 71) the electronic configuration of three outermost shelts are (n−2)f1−14(n−1)d0−1ns2