Identify the following on the basis of given atomic numbers:
19,15,14,8,4
Metalloid with valency of 4

Explanation

To identify the metalloid with a valency of 4 based on the given atomic numbers (19, 15, 14, 8, and 4), we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Elements from Atomic Numbers**:
- Atomic number 19 corresponds to Potassium (K).
- Atomic number 15 corresponds to Phosphorus (P).
- Atomic number 14 corresponds to Silicon (Si).
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