Step 1: The azimuthal quantum number \( l \) determines the shape of the subshell.
Step 2: For example, \( l = 0 \) corresponds to an \( s \)-orbital (spherical), \( l = 1 \) corresponds to a \( p \)-orbital (dumbbell-shaped), and so on.
Step 3: Thus, the shape of the subshell is determined by the azimuthal quantum number.
Kepler's second law (law of areas) of planetary motion leads to law of conservation of