Question

Which set of quantum numbers represent the electron of the lowest energy
1) n=2,1 = 0, m = 0, s=-1/2
2) n=2, 1 = 1, m = 0, s = + 1/2
3) n=4,1 = 0, m = 0, s = + 1/2
4) n=4, 1 = 0, m = 0, s=-1/2​

Answer 1

Answer:

4 option

Explanation:

by n+l rule do ur best

Answer 2

Answer:

1

Explanation:

As n=2 has lower energy than n=4

Next, l=0 represents s - orbital , which has lowest energy energy since it is closer to nucleus

whereas l=1 represents p orbital which is far from nucleus as compared to s ,

Hence it has higher energy .

Also Acc. to Aufbau 's principle s orbital has lower energy.

Additionally , the n+l rule can be used .