Question
Chemistry Question on d block elements
Lanthanides and actinides are also called as
A
short periods
B
inner-transition elements
C
long periods
D
main transition elements
Answer
inner-transition elements
Explanation
Solution
Lanthanides and actinides contains partially filled f− subshell of the antipenultimate (inner to the penultimate shell, ie, n−2 ) shell, so these are known as f− block elements or inner-transition elements.