Aluminium is the most abundant metal in the earth's crust.

Answer

### Step-by-Step Solution:

1. **Understanding the Statement**: The statement in question is "Aluminium is the most abundant metal in the Earth's crust." We need to verify if this statement is true or false.

2. **Ranking of Elements in the Earth's Crust**: To assess the statement, we should look at the ranking of elements based on their abundance in the Earth's crust. The most abundant elements are:
- Oxygen (46.6%)
- Silicon (27.7%)
- Aluminium (8.06%)

3. **Identifying the Most Abundant Metal**: From the ranking, we see that Aluminium is the third most abundant element overall in the Earth's crust. However, we need to focus specifically on metals.

4. **Classification of Elements**:
- Oxygen is a non-metal.
- Silicon is classified as a metalloid.
- Aluminium is a metal.

5. **Conclusion**: Since Aluminium is the most abundant metal in the Earth's crust (8.06%), and no other metal ranks higher than it, we can conclude that the statement "Aluminium is the most abundant metal in the Earth's crust" is indeed true.

### Final Answer:
Yes, Aluminium is the most abundant metal in the Earth's crust.

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