Give one example each of the following :
A molecule in which central atom is linked to three other atoms by covalent bonds.

Answer

To answer the question, we need to identify a molecule where the central atom is bonded to three other atoms through covalent bonds.

### Step-by-Step Solution:

1. **Identify the Central Atom**:
- In the molecule we are looking for, we need to determine which atom will serve as the central atom. The central atom is typically the one that can form the most bonds, often a non-metal.

2. **Choose an Example**:
- A common example of such a molecule is Ammonia (NH₃). In this molecule, nitrogen (N) is the central atom.

3. **Determine the Valence Electrons**:
- Nitrogen has 5 valence electrons. To understand how it forms bonds, we need to consider these electrons.

4. **Bond Formation**:
- Nitrogen needs 3 more electrons to complete its octet (8 electrons in its outer shell). It can achieve this by sharing electrons with three hydrogen (H) atoms, each of which has 1 valence electron.

5. **Covalent Bonding**:
- Each hydrogen atom shares its single electron with nitrogen, resulting in the formation of three covalent bonds. This sharing allows nitrogen to effectively have 8 electrons in its outer shell (5 from itself and 3 shared from hydrogen).

6. **Final Structure**:
- The final structure of ammonia (NH₃) shows nitrogen in the center, bonded to three hydrogen atoms through covalent bonds.

### Example:
- **Molecule**: Ammonia (NH₃)
- **Central Atom**: Nitrogen (N)
- **Bonds**: 3 covalent bonds with hydrogen atoms.