Assertion: bismuth's life | /r/HasProperty | calculated by the geiger-nuttall rule
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Source sentences:
text: Polonium-210's half-life is cut down by two orders of magnitude (when calculated by the Geiger-Nuttall rule) because of the fact that Lead-208 is doubly-magic and in the theory of alpha decay it is easier to form the alpha particle when the nucleons to form it are already spin-paired.