Which of the element of oxygen family is most poisonous to human race

Options

A. O
B. S
C. Se
D. None

Answer

To determine which element of the oxygen family (Group 16 of the periodic table) is most poisonous to the human race, we can follow these steps:

### Step 1: Identify the Elements in the Oxygen Family
The oxygen family, also known as Group 16, includes the following elements:
- Oxygen (O)
- Sulfur (S)
- Selenium (Se)
- Tellurium (Te)
- Polonium (Po)

### Step 2: Analyze the Toxicity of Each Element
- **Oxygen (O)**: Essential for life; however, in high concentrations, it can be toxic, but it is not considered poisonous in normal atmospheric conditions.
- **Sulfur (S)**: Generally non-toxic, but certain sulfur compounds can be harmful in large quantities.
- **Selenium (Se)**: Essential in trace amounts but can be toxic in higher concentrations.
- **Tellurium (Te)**: Toxic in large amounts, but not as commonly encountered.
- **Polonium (Po)**: Highly radioactive and extremely toxic; even in minute amounts, it can be lethal.

### Step 3: Determine the Most Poisonous Element
Among these elements, Polonium (Po) stands out as the most poisonous due to its extreme toxicity and radioactivity. It can cause severe health issues and is considered highly dangerous to humans.

### Conclusion
The most poisonous element of the oxygen family to the human race is **Polonium (Po)**.

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