In(NO3) 2

The chemical formula \( \text{In(NO}_3\text{)}_2 \) represents indium(II) nitrate. Here’s a breakdown of the components:

• In: This stands for indium, a chemical element with the atomic number 49.
• (NO₃): This is the nitrate ion, which consists of one nitrogen atom (N) and three oxygen atoms (O). Nitrate has a charge of -1.
• The subscript 2 indicates that there are two nitrate ions for every one indium ion in the compound.

Indium typically exhibits a +3 oxidation state, but in this case, it is in the +2 state, resulting in the chemical formula being \( \text{In(NO}_3\text{)}_2 \).

In general, indium(II) nitrate is not as common as indium(III) nitrate (\( \text{In(NO}_3\text{)}_3 \)), but it can still be encountered in a laboratory setting. If you need further details about the properties or uses of indium(II) nitrate, feel free to ask!