40. Решение задачи по химии №004 081

30. Explain why chromium exhibits metallic properties, and sulfur, located in the same group, non-metallic. Justify your answer based on the structure of the atoms of these elements. Specify their oxidation states. Which element forms a gaseous compound with hydrogen. Write the formula for this compound. Make formulas for the oxides of these elements, indicate their nature.

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