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CHEMISTRY
Chemical Elements
Polonium
Polonium is a rare, intensely radioactive metal found only in trace amounts in uranium ores
21 Jan 2026
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What is the primary reason polonium is found only in trace amounts naturally?
Because it is highly reactive and quickly forms stable compounds in the environment
Because all its isotopes have short half-lives and it is produced as a decay product of uranium-238
Because it is artificially produced and does not occur naturally at all
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CHEMISTRY
Chemical Elements
Polonium
Polonium is a rare, intensely radioactive metal with no stable isotopes and unique chemical traits
20 Jan 2026
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Why is polonium-210 found only in trace amounts in nature?
Because it is a short-lived decay product of uranium-238 and quickly decays further
Because it is produced abundantly in the Earth's crust but quickly reacts chemically
Because it is a stable isotope that does not undergo radioactive decay
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