Describe the following sets in set-builder form :
(i) A = {1,2,3,4,5,6}
(ii) B = {1, 12,13,14,14,......}
The electron identified by quantum number n and l
1.n=4,l=1 2.n=4,l=0
3.n=3,l=2 4.n=3,l=1
Can be placed in the order of increasing energy from the lowest to highest as
A) 4<2<3<1 B) 2<4<1<3
C) 1<3<2<4. D) 3<1<4<2