What designation is given to an orbital having
n = 2, l = 1, (ii) n = 3, l = 0, (iii) n = 5, l = 3 (iv) n = 4, l = 2?

Explanation

To determine the designation of an orbital based on the given quantum numbers (n and l), we follow these steps:

### Step-by-Step Solution:

1. **Identify the Principal Quantum Number (n)**:
- The principal quantum number (n) indicates the energy level of the electron in an atom. It can take positive integer values (1, 2, 3, ...).

2. **Identify the Azimuthal Quantum Number (l)**:
...