Questions: The angular momentum quantum number is best associated with the energy of the orbit. energy of the orbital. number of orbitals in a subshell. orientation in space of an orbital. shape of the orbital.

Solution Steps

The angular momentum quantum number, denoted as \( l \), is one of the four quantum numbers used to describe the unique quantum state of an electron in an atom. It determines the shape of the electron's orbital.

• Energy of the orbit: This is primarily determined by the principal quantum number \( n \).
• Energy of the orbital: While \( l \) can influence the energy levels within a given principal quantum number \( n \), it is not the primary determinant.
• Number of orbitals in a subshell: This is determined by the magnetic quantum number \( m_l \), which ranges from \(-l\) to \(+l\).
• Orientation in space of an orbital: This is determined by the magnetic quantum number \( m_l \).
• Shape of the orbital: The angular momentum quantum number \( l \) directly determines the shape of the orbital (e.g., \( l = 0 \) for s-orbitals, \( l = 1 \) for p-orbitals, etc.).

Final Answer