Question

The maximum number of electrons that can be accommodated in a subshell with angular momentum quantum number l is

• A. 2n²
• B. 2(2l+1)
• C. 2
• D. (2l+1)

Answer 1

The Correct Option is B

The maximum number of electrons in a subshell is determined by the formula \( 2(2l + 1) \),
where \( l \) is the angular momentum quantum number. This is because for a given \( l \), there are \( 2l + 1 \) possible values of the magnetic quantum number \( m_l \), and each can hold two electrons (one with spin \( +\frac{1}{2} \) and one with spin \( -\frac{1}{2} \)).
Thus, the maximum number of electrons that can be accommodated in a subshell is \( 2(2l + 1) \).

The correct option is (B): \(2(2l+1)\)