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#radioactive decay #half life #nuclear physics #unstable isotope #atom symbol #decay rate

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#radioactive decay #half life #unstable isotope #radioactivity #atom #nucleus #nuclear physics #radiation

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#radioactive decay #half life #nuclear decay #radioactivity decrease #unstable isotope #decay over time

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#radionuclide #half life #radioactive decay #decay rate #unstable isotope #time decay

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#polonium-208 #po-208 #atomic symbol #radioactive element #nuclear physics #isotope 208 #unstable isotope

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#radioactive waste #nuclear waste drum #nuclear explosion #radiation leak #unstable isotope