Problem: Little is known about the properties of astatine, At, because of its rarity and high radioactivity. Nevertheless, it is possible for us to make many predictions about its properties.Would you expect At to be a metal, nonmetal, or metalloid?

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Recall that the trend for metallic character is as follows: it decreases from left to right and increases down a period in the periodic table. 


The given element is:


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Problem Details

Little is known about the properties of astatine, At, because of its rarity and high radioactivity. Nevertheless, it is possible for us to make many predictions about its properties.

Would you expect At to be a metal, nonmetal, or metalloid?

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