Calculate the ratio of the wavelength of the `K_(alpha)` line for niobium (Nb) to that for gallium (Ga). Take needed data from the periodic table of Appendix G.

Explanation

To calculate the ratio of the wavelength of the K-alpha line for niobium (Nb) to that for gallium (Ga), we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Atomic Numbers**:
- For Niobium (Nb), the atomic number \( Z_{Nb} = 41 \).
- For Gallium (Ga), the atomic number \( Z_{Ga} = 31 \).

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