The electronic configuration of elements of group 18 can be represent by

Options

A. `ns^(2)`
B. `ns^(2) np^(5)`
C. `ns^(2)np^(6)`
D. `(n-1) d^(8) ns^(2)`

Answer

To determine the electronic configuration of elements in Group 18 of the periodic table, we can follow these steps:

### Step-by-Step Solution:

1. **Identify Group 18 Elements**:
- Group 18 of the periodic table consists of the noble gases: Helium (He), Neon (Ne), Argon (Ar), Krypton (Kr), Xenon (Xe), Radon (Rn), and Oganesson (Og).

2. **Understand Electronic Configuration**:
- The electronic configuration describes the distribution of electrons in an atom's orbitals. For noble gases, this configuration is particularly stable due to their full outer electron shells.

3. **General Electronic Configuration**:
- The general electronic configuration for the elements in Group 18 can be represented as:
\[ ns^2 np^6 \]
- Here, "n" represents the principal quantum number, which corresponds to the period of the element in the periodic table.

4. **Breakdown of the Configuration**:
- For each period:
- **Period 1**: Helium (He) has the configuration \(1s^2\).
- **Period 2**: Neon (Ne) has the configuration \(2s^2 2p^6\).
- **Period 3**: Argon (Ar) has the configuration \(3s^2 3p^6\).
- **Period 4**: Krypton (Kr) has the configuration \(4s^2 4p^6\).
- **Period 5**: Xenon (Xe) has the configuration \(5s^2 5p^6\).
- **Period 6**: Radon (Rn) has the configuration \(6s^2 6p^6\).
- **Period 7**: Oganesson (Og) has the configuration \(7s^2 7p^6\).

5. **Conclusion**:
- The electronic configuration for the elements of Group 18 can be summarized as \(ns^2 np^6\), where "n" varies from 1 to 7 depending on the period of the element.

### Final Answer:
The electronic configuration of elements of Group 18 can be represented by \(ns^2 np^6\).

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