The `K_beta` X-ray of argon has a wavelength of 0.36 nm. The minimum energy needed to ionize an argon atom is 16 eV. Find the energy needed to knock out an electron from the K shell of an argon atom.

Explanation

To solve the problem, we need to find the energy required to knock out an electron from the K shell of an argon atom, given the wavelength of the K_beta X-ray and the minimum energy needed to ionize an argon atom.

### Step-by-Step Solution:

1. **Identify the given data:**
- Wavelength of K_beta X-ray, \( \lambda = 0.36 \, \text{nm} \)
- Minimum energy needed to ionize an argon atom, \( E_{\text{ionization}} = 16 \, \text{eV} \)

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