Is AlF3 ionic or covalent?
Understand the Problem
The question is asking whether aluminum trifluoride (AlF3) is classified as an ionic or covalent compound. To answer this, we need to consider the nature of the bonds between the aluminum and fluoride atoms, typically characterized by their electronegativity differences.
Answer
AlF3 is ionic.
The final answer is AlF3 is ionic.
Answer for screen readers
The final answer is AlF3 is ionic.
More Information
Fajan's rule helps explain why AlF3 is ionic: smaller cations and larger anions generally lead to ionic bonds.
Tips
A common mistake is to assume AlF3 is covalent due to aluminum's relatively low electronegativity. However, the significant difference in electronegativity between Al and F makes the compound ionic.
Sources
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