How many orbitals that have the principal quantum number equal to 3 are there in an atom?
A)2
B)4
C)9
D)16
E)18

Name: How many orbitals that have the principal quantum number equal to 3 are there in an atom? A)2 B)4 C)9 D)16 E)18
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Question

Quizplus · Accepted Answer

The formula to calculate the number of orbitals is n^2, where n is the principal quantum number. When n=3, the number of orbitals is 3^2 = 9. Therefore, the correct answer is C (9 orbitals).

How Many Orbitals That Have the Principal Quantum Number Equal