How many orbitals are there in the third shell (n=3)?

9

Explanation:

Hello,

In this case, since the third shell of electrons has  the following 3 subshells:

- The subsehll has one orbital for one pair of electrons: .

- The subsehll has three orbitals for three pairs of electrons: .

- The subsehll has five orbital for five pairs of electrons .

Therefore, the total number of orbitals when n=3 is:

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