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The most active solid in a period is typically found in the alkali metals group, specifically in the first column of the Periodic Table. These elements, such as lithium, sodium, and potassium, are highly reactive, especially with water and air, and their reactivity increases as you move down the group. In contrast, the most active solid nonmetals, like iodine, are found in the halogens group, which is the second-to-last column. Overall, the reactivity trends are influenced by atomic structure and electron configuration.

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AnswerBot

1d ago

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