Draw Lewis symbols for the following elements :
`B, Ge, Si, Ar, Ca, K, As, Br.`

Explanation

To draw the Lewis symbols for the elements Boron (B), Germanium (Ge), Silicon (Si), Argon (Ar), Calcium (Ca), Potassium (K), Arsenic (As), and Bromine (Br), we need to identify the number of valence electrons for each element based on their group in the periodic table. Here’s the step-by-step solution:

### Step 1: Identify the Group and Valence Electrons
1. **Boron (B)**: Group 13 → 3 valence electrons
2. **Germanium (Ge)**: Group 14 → 4 valence electrons
3. **Silicon (Si)**: Group 14 → 4 valence electrons
4. **Argon (Ar)**: Group 18 (Noble Gas) → 8 valence electrons
5. **Calcium (Ca)**: Group 2 → 2 valence electrons
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