Mokslas kasdienybėje
Why can't we predict when one nucleus will decay?
After three half-lives, an ideal radioactive population has one eighth of its initial undecayed nuclei remaining.
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Trumpas atsakymas
After three half-lives, an ideal radioactive population has one eighth of its initial undecayed nuclei remaining.
Kas iš tikrųjų vyksta?
Mokslas geriau įsimena, kai apibrėžimas susiejamas su tuo, ką galima išmatuoti ar stebėti.
A half-life does not mean every nucleus survives exactly that long; it is a statistical property of a population.
Mokslas geriau įsimena, kai apibrėžimas susiejamas su tuo, ką galima išmatuoti ar stebėti.
Naudingas vaizdinys
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Radioactive decay is probabilistic for an individual nucleus. Half-life describes the statistical behaviour of a large population, not a countdown timer attached to each atom.