Draw Lewis structure of `O^(2-) and N^(3-)` ions.

Explanation

To draw the Lewis structures of the `O^(2-)` and `N^(3-)` ions, we will follow these steps:

### Step 1: Determine the number of valence electrons for each ion.

- **For O^(2-)**:
- Oxygen (O) is in Group 16 of the periodic table, which means it has 6 valence electrons.
- Since it has a charge of 2-, we add 2 more electrons.
- Total valence electrons = 6 + 2 = 8.
...