Final answer:
Option 1: Hg2^2+, Option 2: NO2-, and Option 3: SO3^2- would form ionic bonds with anions.
Step-by-step explanation:
In order to determine which cations would form ionic bonds with anions, we need to analyze the charges of the cations and anions. Ionic bonds are formed between a positively charged cation and a negatively charged anion. Looking at the provided options:
- Option 1: Hg22+ - This cation has a charge of +2, which means it can form an ionic bond with an anion with a charge of -2.
- Option 2: NO2- - This anion has a charge of -1, so it can form an ionic bond with a cation with a charge of +1.
- Option 3: SO32- - This anion has a charge of -2, so it can form an ionic bond with a cation with a charge of +2.
- Option 4: Ar - Argon is a noble gas and does not typically form ionic bonds with other elements.
Therefore, the correct options would be 1 (Option 1: Hg22+), 2 (Option 2: NO2-), and 3 (Option 3: SO32-).