Metals are good conductor of electricity because they contain

Options

A. If both assertion and reason are true and reason is the correct explanation of assertion
B. If both assertion and reason are true but reason is not the correct explanation of assertion.
C. If assertion is true but reason is false
D. If both assertion and reason are false

Explanation

**Step-by-Step Solution:**

1. **Understanding Electrical Conductivity**:
- Electrical conductivity refers to the ability of a material to allow the flow of electric current. In metals, this property is particularly high.

2. **Structure of Metals**:
- Metals have a crystalline structure where atoms are arranged in a regular pattern. This arrangement allows for the presence of certain types of electrons.

3. **Presence of Free Electrons**:
- In metals, some of the electrons are not bound to any specific atom. These electrons are known as "free electrons" or "delocalized electrons."

4. **Movement of Free Electrons**:
- Free electrons can move freely throughout the metallic lattice. When an electric field is applied, these electrons can drift towards the positive end, allowing electric current to flow.

5. **Conclusion**:
- Therefore, metals are good conductors of electricity because they contain free electrons that can move easily within the metal structure.

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