What kind of oxides are formed by sodium?

Explanation

To answer the question about the types of oxides formed by sodium, we can break down the information step-by-step:

### Step-by-Step Solution:

1. **Identify Sodium's Group**: Sodium is an alkali metal, which is part of Group 1 of the periodic table. The alkali metals include lithium, sodium, potassium, rubidium, and cesium.

**Hint**: Remember that alkali metals are highly reactive and have similar chemical properties.

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