Why does `NH_(3)` form hydrogen reactivity of group 15 elements.

Explanation

To understand why NH₃ (ammonia) exhibits hydrogen reactivity among the group 15 elements, we can break down the explanation into several steps:

### Step-by-Step Solution:

1. **Identify the Elements Involved**:
- The question involves NH₃ (ammonia) and its relationship with hydrogen reactivity in group 15 elements, which includes nitrogen (N), phosphorus (P), arsenic (As), antimony (Sb), and bismuth (Bi).

2. **Electronegativity Comparison**:
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