Which of the follwing should be possible subshell for n+l=7 1)7s,6p,5d,4f 2)4f,5p,6s,4d 3)7s,6p,5d,6d 4)4s,5d,6p,7s

Which of the follwing should be possible subshell for n+l=7 1)7s,6p,

1.	Which of the follwing should be possible subshell for n+l=7 1)7s,6p,5d,4f 2)4f,5p,6s,4d 3)7s,6p,5d,6d 4)4s,5d,6p,7s
Answer» ital with LOWER N has lower energy. THUS the POSSIBLE answer is 7s, 6p, 5d, 4f