Give one example each of the following :
A molecule in which central atom has ten electrons after sharing.

Answer

To find a molecule in which the central atom has ten electrons after sharing, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Concept**:
- A molecule consists of two or more atoms bonded together. In this case, we are interested in a molecule where the central atom has ten electrons after sharing.

2. **Identifying the Central Atom**:
- We need to find a central atom that can form multiple bonds with surrounding atoms. A good candidate for this is phosphorus (P), which can expand its octet.

3. **Choosing the Right Molecule**:
- One example of a molecule where the central atom has ten electrons after sharing is phosphorus pentafluoride (PF₅).

4. **Analyzing Phosphorus Pentafluoride (PF₅)**:
- Phosphorus has 5 valence electrons.
- Each fluorine atom (F) has 7 valence electrons and needs 1 more electron to complete its octet.
- In PF₅, phosphorus forms five single covalent bonds with five fluorine atoms.

5. **Counting Electrons Around Phosphorus**:
- When phosphorus shares its electrons with the five fluorine atoms, it effectively shares 5 additional electrons.
- Therefore, the total number of electrons around phosphorus becomes:
- 5 (original valence electrons) + 5 (shared with fluorine) = 10 electrons.

6. **Conclusion**:
- Thus, phosphorus pentafluoride (PF₅) is a molecule where the central atom (phosphorus) has ten electrons after sharing.

### Final Answer:
**Phosphorus pentafluoride (PF₅)** is an example of a molecule in which the central atom has ten electrons after sharing.

---