Calculate the oxidation number of nitrogen in `NO_(3)^(-)`. Suggest structure of this compound. Count for the fallacy.

Explanation

To calculate the oxidation number of nitrogen in the nitrate ion \( \text{NO}_3^- \), we can follow these steps:

### Step 1: Identify the oxidation states of known elements
In the nitrate ion \( \text{NO}_3^- \), we know that:
- Oxygen (O) typically has an oxidation number of -2.

### Step 2: Set up the equation for the oxidation number
Let the oxidation number of nitrogen (N) be \( x \). Since there are three oxygen atoms, the total contribution from oxygen will be:
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