Which quantum number describes the orientation of an orbital in space?
Correct Answer: magnetic quantum number (m_l)
- Step 1: Understand that quantum numbers are used to describe the properties of electrons in atoms.
- Step 2: Know that there are four types of quantum numbers: principal, azimuthal, magnetic, and spin.
- Step 3: Identify that the magnetic quantum number is specifically related to the orientation of an orbital.
- Step 4: Remember that the magnetic quantum number is denoted as m_l.
- Step 5: Conclude that the magnetic quantum number (m_l) describes how an orbital is oriented in space.
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