The majority of noble gas compounds are those of xenon. Explain.

Answer

**Step-by-Step Solution:**

1. **Understanding Noble Gases:**
- Noble gases are a group of elements in Group 18 of the periodic table, which include helium, neon, argon, krypton, xenon, and radon. They are known for their lack of reactivity due to having a complete valence shell of electrons.

2. **Identifying Xenon:**
- Among the noble gases, xenon (Xe) is the heaviest and has a larger atomic size compared to the other noble gases. This larger size allows for more complex interactions with other elements.

3. **Ionization Energy:**
- Xenon has the lowest ionization energy among the noble gases. Ionization energy is the energy required to remove an electron from an atom. A lower ionization energy means that xenon can lose an electron more easily compared to other noble gases.

4. **Reactivity with Oxidizing Agents:**
- Because of its lower ionization energy, xenon can be oxidized by strong oxidizing agents. Strong oxidizing agents, such as fluorine (F2) and oxygen (O2), can interact with xenon to form various compounds. This is not as feasible with other noble gases, which have higher ionization energies and are less likely to form compounds.

5. **Formation of Compounds:**
- The ability of xenon to form compounds with strong oxidizing agents leads to the majority of noble gas compounds being those of xenon. These compounds include xenon fluorides (like XeF2, XeF4, and XeF6) and xenon oxides (like XeO3).

6. **Exceptions:**
- While xenon is the most prominent noble gas in terms of compound formation, radon (Rn) is also capable of forming compounds, but it is radioactive and less stable, which limits the number of known compounds.

**Conclusion:**
- In summary, the majority of noble gas compounds are those of xenon due to its lower ionization energy, allowing it to be oxidized by strong oxidizing agents, leading to the formation of various compounds.

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