Quantum Numbers MCQs

Question 1

If the principal quantum number n is 4, what are the possible values for the azimuthal quantum number l?

• l = 0, 1, 2, 3

• l = 0, 1, 2

• l = 0, 1, 2, 3, 4

• l = 1, 2, 3, 4

Question 2

What does the magnetic quantum number m_l indicate?

• It specifies the shape of the orbital.

• It specifies the size of the orbital.

• It specifies the orientation of the orbital in space.

• It specifies the spin of the electron.

Question 3

What are the possible values for the principal quantum number n for an electron in the 4d subshell?

• n = 1, 2, 3

• n = 2, 3, 4

• n = 3, 4, 5

• n = 4, 5, 6

Question 4

What is the maximum number of electrons that can occupy an orbital with n = 3 and l = 2?

• 2

• 6

• 10

• 14

Question 5

What is the principal quantum number for an electron in the 5s orbital?

• n = 1

• n = 1

• n = 1

• n = 1