# Question #33d8c

##### 1 Answer

Oct 14, 2015

The answer is **(c)**

#### Explanation:

Each electron shell corresponds to a different energy level, which is represented by the *principal quantum number*,

The *third energy level*, for which

The relationship between the principal quantum number and the number of orbitals is given by the equation

#"no. of orbitals" = n^2#

This equation will produce

#n = 1 implies "no. of orbitals" = 1^2 = 1#

#n = 2 implies "no. of orbitals" = 2^2 = 4#

#n=3 implies "no. of orbitals" = 3^2 = 9#

The

one 3s-orbitalthree 3p-orbitalsfive 3d-orbitals