A lot of people misunderstood about the correspondence between quantum number and the shape of orbital. First of all, you have to know the terminology of technical words for this area.

• Quantum number - A set of numerical values which provides a solution to the Schrödinger wave equation for one electron system (hydrogen).

• Azimuthal quantum number - The second quantum number which describes the shape of the orbital

• Orbital - Wave function of one electron

• Radial