Among the given elements, choose the element belonging to group 16 of periodic table. Na, Se, Al

Explanation

To determine which element belongs to group 16 of the periodic table among the given elements (Na, Se, Al), we will analyze each element based on its electronic configuration and valence electrons.

### Step-by-Step Solution:

1. **Identify the Elements**: The elements provided are Sodium (Na), Selenium (Se), and Aluminum (Al).

2. **Analyze Sodium (Na)**:
- **Symbol**: Na
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