The shape of orbital is determined by ………quantum number

Explanation

To determine the shape of an orbital, we need to identify the relevant quantum number. The quantum numbers associated with atomic structure are:

1. **Principal Quantum Number (n)**: This quantum number indicates the size and energy level of the orbital. It is represented by the letter 'n' and can take positive integer values (1, 2, 3, ...). However, it does not determine the shape of the orbital.

2. **Azimuthal Quantum Number (l)**: This quantum number is crucial for determining the shape of the orbital. It is represented by the letter 'l' and can take values from 0 to (n-1). The different values of 'l' correspond to different shapes of orbitals:
- l = 0: s orbital (spherical shape)
- l = 1: p orbital (dumbbell shape)
- l = 2: d orbital (cloverleaf shape)
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