Which among the following electron will emit radiation of maximum wavelength ?

Options

A. `n= 4,l= 1,m= 0 "to" n= 3,l= 2,m= -2`
B. `n= 3,l= 2,,m= -2 "to" n= 2,l= 1,m= -1`
C. `n= 3,l= 2,,m= 1 "to" n= 2,l= 0,m= 0`
D. `n= 3,l= 1,,m= 0 "to" n= 2,l= 1,m= 1`

Explanation

To determine which electron transition emits radiation of maximum wavelength, we can follow these steps:

### Step 1: Understand the relationship between energy and wavelength
The energy (E) of the emitted radiation is inversely proportional to the wavelength (λ):
\[ E \propto \frac{1}{\lambda} \]
This means that as the energy of the transition decreases, the wavelength increases.

### Step 2: Identify the electron transitions
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