The wavelength of the `K_(alpha)` line from iron is 193 pm. What is the energy difference between the two states of the iron atom that give rise to this transition?

Explanation

To find the energy difference between the two states of the iron atom that give rise to the K-alpha transition, we can follow these steps:

### Step 1: Understand the given data
We are given the wavelength of the K-alpha line from iron, which is 193 picometers (pm).

### Step 2: Convert the wavelength to angstroms
1 picometer = \(10^{-10}\) angstroms. Therefore, we can convert 193 pm to angstroms:
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