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The metalloid with the largest atomic weight and the highest density is Polonium. Polonium is radioactive with no stable isotopes. The most stable isotope has a molecular weight of 202 but only a half life of about 45 minutes. It has a density of approximately 9.19 g mol-1

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14y ago
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12y ago

Polonium 209

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12y ago

polonium

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Q: What is the lightest weight metalloid?
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