wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

For which of the following set of quantum numbers will an electron have the highest energy?

A
n=3,l=1,m=0,s=12
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
n=2,l=1,m=1,s=+12
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
n=4,l=1,m=1,s=12
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
D
n=3,l=2,m=1,s=+12
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is C n=4,l=1,m=1,s=12
According to Aufbau principle, electrons are assigned to orbitals in order of increasing value of sum of n+l.
For two orbitals having same value of n+l, electrons will be assigned to the orbital having lowest value of n.
For option (a), n+l = 4
For option (b), n+l = 3
For option (c), n+l = 5 and n = 4
For option (d), n+l = 5 and n = 3
For option (c) and option (d), n+l value is same but value of n is more for option (c) hence it will have higher energy.

flag
Suggest Corrections
thumbs-up
10
Join BYJU'S Learning Program
Join BYJU'S Learning Program
CrossIcon