Write the Lewis dot structural formula for each of the following. Give also, the formula of a neutral molecule, which has the same geometry and the same arrangement of the bonding electrons as in each of the following. An example is given below in the case of `H_(3)O^(+) and NH_(3)`.
`underset("structure")underset("Lewis dot")([H:underset(* *)overset(H)overset(* *)O:H]^(+)) underset("structure") underset("Neutral")([H:underset(* *)overset(H)overset(* *)N:H])`

Options

A. `O_(2)^(2-)`
B. `CO_(3)^(2-)`
C. `CN^(-)`
D. `NCS^(-)`

Explanation

To solve the problem, we will write the Lewis dot structures for the given ions and identify a neutral molecule with the same geometry and arrangement of bonding electrons for each. We will go through each compound step by step.

### Step 1: Lewis Dot Structure for Peroxide Ion (O₂²⁻)

1. **Identify the atoms**: There are two oxygen atoms.
2. **Count valence electrons**: Each oxygen has 6 valence electrons. Therefore, for two oxygens, we have \(6 + 6 + 2\) (for the 2 negative charges) = 14 valence electrons.
3. **Draw the structure**:
- Place the two oxygen atoms next to each other.
...