Oxidation States and Compounds

The video tutorial explains how to find the oxidation numbers for each element in AlF3. It starts by noting that AlF3 is a neutral compound, meaning the oxidation numbers must sum to zero. The video confirms that aluminum typically has an oxidation number of +3, while fluorine is always -1. With three fluorine atoms, the total negative charge is -3, requiring aluminum to be +3 to balance the compound. The video concludes by summarizing these findings.

What is the overall charge of the compound AlF3?

• Positive

• Depends on the environment

• Negative

• Neutral

What is the typical oxidation state of aluminum in compounds?

• +1

• +2

• +3

• 0

What is the oxidation state of fluorine in AlF3?

• -1

• 0

• +1

• +2

How many fluorine atoms are present in AlF3?

• 4

• 3

• 2

• 1

What is the oxidation number of aluminum in AlF3?

• +1

• +2

• +3

• 0