Question

the lowest energy level that contains f orbitals is n = 5 3 2 4 1

Explanation:

For an atomic energy level with principal quantum number \( n \), the azimuthal quantum number \( l \) (which defines orbital type) ranges from 0 to \( n-1 \). An f orbital corresponds to \( l = 3 \). To have \( l = 3 \), \( n-1 \geq 3 \), so \( n \geq 4 \). Thus, the lowest \( n \) containing f orbitals is 4.

Answer:

4