Question

The number of magnetic quantum number values for the angular momentum quantum number \( l = 1 \) is:

• A. 1
• B. 3
• C. 5
• D. 7

Hint:

For any value of \( l \), the number of possible values of \( m_l \) is \( 2l + 1 \).

Answer 1

The Correct Option is B

1. Magnetic quantum number (\( m_l \)):
The magnetic quantum number defines the orientation of an orbital and can take integer values from \( -l \) to \( +l \), including zero. 2. For \( l = 1 \), the possible values of \( m_l \) are:
\[ m_l = -1, 0, +1 \] So, the total number of possible values for \( m_l \) is 3.