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What is the magnetic quantum number for a 3d orbital?

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Question: What is the magnetic quantum number for a 3d orbital?

Options:

  1. -2
  2. -1
  3. 0
  4. 1

Correct Answer: -2

Solution: 

The magnetic quantum number (m_l) for a 3d orbital can be -2, -1, 0, 1, or 2.

What is the magnetic quantum number for a 3d orbital?

Practice Questions

Q1
What is the magnetic quantum number for a 3d orbital?
  1. -2
  2. -1
  3. 0
  4. 1

Questions & Step-by-Step Solutions

What is the magnetic quantum number for a 3d orbital?
  • Step 1: Understand that orbitals are defined by quantum numbers.
  • Step 2: Identify the principal quantum number (n) for a 3d orbital, which is 3.
  • Step 3: Recognize that the 'd' orbitals correspond to the angular momentum quantum number (l) of 2.
  • Step 4: Know that the magnetic quantum number (m_l) can take values from -l to +l.
  • Step 5: Calculate the possible values for m_l: Since l = 2, m_l can be -2, -1, 0, 1, or 2.
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