Assign oxidation number to the underlined elements in each of the following species :
`K_(2)ul(Mn)O_(4)`

Explanation

To assign the oxidation number to manganese in the compound \( K_2MnO_4 \), follow these steps:

### Step-by-Step Solution:

1. **Identify the compound**: The compound given is \( K_2MnO_4 \).

2. **Assign oxidation numbers to known elements**:
- Potassium (K) is in Group 1 of the periodic table, so it has an oxidation number of \( +1 \).
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