Which of the following elements has/have electron affinity greater than S? 

Options

A. O
B. Se
C. Te
D. None of these

Answer

To determine which of the given elements has an electron affinity greater than sulfur (S), we need to understand the concept of electron affinity and how it varies among elements in the same group of the periodic table.

### Step-by-Step Solution:

1. **Understand Electron Affinity**:
- Electron affinity is defined as the amount of energy released when an electron is added to a neutral atom in the gas phase. A higher electron affinity indicates that an atom more readily accepts an additional electron.

2. **Identify the Elements**:
- The elements in question are from the oxygen group (Group 16): Oxygen (O), Sulfur (S), Selenium (Se), and Tellurium (Te).

3. **Trends in Electron Affinity**:
- As we move down a group in the periodic table, the size of the atoms increases due to the addition of electron shells. This generally leads to a decrease in electron affinity because the added electron is further from the nucleus and experiences less attraction.

4. **Analyze the Elements**:
- **Oxygen (O)**: Although it is above sulfur in the group, it has a smaller atomic size and higher electronegativity. However, due to electron-electron repulsion in the small 2p orbital, the electron affinity of oxygen is actually lower than that of sulfur.
- **Sulfur (S)**: This is our reference point. It has a moderate electron affinity among the group.
- **Selenium (Se)** and **Tellurium (Te)**: Both are below sulfur in the group, and as expected, their electron affinities are lower than that of sulfur due to the increased atomic size and decreased effective nuclear charge felt by the added electron.

5. **Conclusion**:
- Based on the trends and analysis, none of the elements (O, Se, Te) have an electron affinity greater than that of sulfur. Therefore, the answer to the question is that none of these elements have an electron affinity greater than sulfur.

### Final Answer:
None of the elements (O, Se, Te) have an electron affinity greater than sulfur (S).