give 2 examples for each:
1. Monovalent polyatomic anion
2. Diatomic molecule of element
3. Tetra atomic molecule of compound
4. Divalent polyatomic anion
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Explanation:
1. Monovalent polyatomic anion exmples are: chloride ions Cl- , bromide Br- , iodide I-.
2. Diatomic molecule of element examples are: Gases carbon monoxide (CO), nitric oxide (NO), and hydrogen chloride (HCl).
3. Tetra atomic molecule of compound examples are: Ammonia NH3 and for Sulfur trioxide SO3.
4. Divalent polyatomic anion examples are: iron or Fe2+ and calcium
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