Atomic Structure Question 281
Question: An electron has principal quantum number 3. The number of its (i) sub-shells and (ii) orbitals would be respectively
Options:
A) 3 and 5
B) 3 and 7
C) 3 and 9
D) 2 and 5
Show Answer
Answer:
Correct Answer: C
Solution:
The principle quantum number $ n=3 $ . Then azimuthal quantum number $ l=3 $ and number of orbitals $ =n^{2}=3^{2}=9 $ . 3 and 9
