The only element in group `16` elements, which is definitely a metal is____.

Answer

To solve the question, "The only element in group 16 elements, which is definitely a metal is____," we can follow these steps:

### Step 1: Identify the Elements in Group 16
Group 16 of the periodic table is also known as the oxygen family or chalcogens. The elements in this group include:
- Oxygen (O)
- Sulfur (S)
- Selenium (Se)
- Tellurium (Te)
- Polonium (Po)

### Step 2: Classify Each Element
Next, we classify each of these elements based on their properties:
- **Oxygen (O)**: Nonmetal
- **Sulfur (S)**: Nonmetal
- **Selenium (Se)**: Metalloid (has properties of both metals and nonmetals)
- **Tellurium (Te)**: Metalloid
- **Polonium (Po)**: Metal (specifically a radioactive metal)

### Step 3: Identify the Metal
From the classifications, we can see that:
- The only element in Group 16 that is definitely classified as a metal is **Polonium (Po)**.

### Conclusion
Thus, the answer to the question is:
**Polonium (Po)**.

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