What part of the initial number of atoms of a radioactive substance remains
| May 6, 2021 | education
What part of the initial number of atoms of a radioactive substance remains uncrushed after 4 days, if the half-life of this element is known to be 2 days?
Answer: one fourth part will remain.
I explain: we know the half-life of two days, which means that after this interval 1/2 part will remain. After another two days, the atoms will be halved again, and half of the half is a quarter. Thus, 1/4 part is obtained.
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