July 2022 1 35 Report
Постоянная распада Тория-230 равен 2,68х10⁻¹³с⁻¹.Сколько распадов состоится за 1 секунду в радиоактивном препарате Тория-230,если в нём содержится 7,5х10²⁴ атомов?
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