AskiitiansExpert Abhinav Batra
Last Activity: 14 Years ago
Dear Rahul
is the electronic configuration that should not be observed using the rule.
bcz for 4s n=4 l=0 so n+l=4
for 3d n=3 l= so n+l =5
so 4s being lower in energy than 3d bcz of (n+l) rule should be filled first which is not the case here.
ALL THE best
AskIITIANsExpert
ABhinav Batra