To determine the number of atoms of each element in 2Al2O32 \text{Al}_2\text{O}_3, let’s break it down step by step.
- Identify the elements and their quantities in the formula unit:
- In one formula unit of Al2O3\text{Al}_2\text{O}_3:
- There are 2 aluminum (Al) atoms.
- There are 3 oxygen (O) atoms.
- In one formula unit of Al2O3\text{Al}_2\text{O}_3:
- Multiply by the coefficient:
- The coefficient 2 indicates that there are 2 formula units of Al2O3\text{Al}_2\text{O}_3.
- Calculate the total number of atoms:
- Aluminum (Al):
- 2×2=42 \times 2 = 4 aluminum atoms.
- Oxygen (O):
- 2×3=62 \times 3 = 6 oxygen atoms.
- Aluminum (Al):
Final Answer:
In 2Al2O32 \text{Al}_2\text{O}_3, there are:
- 4 aluminum (Al) atoms.
- 6 oxygen (O) atoms.