Calculate the wavelength emitted during the transition of an electron in between two level of `Li^(2+)` ion whose sum is `4` and difference is `2`

Explanation

To calculate the wavelength emitted during the transition of an electron in the \( Li^{2+} \) ion, we follow these steps:

### Step 1: Identify the Quantum Levels
Given that the sum of the quantum numbers \( N_1 \) and \( N_2 \) is 4 and their difference is 2, we can set up the following equations:
1. \( N_1 + N_2 = 4 \)
2. \( N_2 - N_1 = 2 \)

### Step 2: Solve the Equations
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