3 ms·
In short, no. Pedantically, though, some radioactive elements decay in your body, so there are nuclei in your body right now that are different from when you a
by ISL 10y ago
In short, no.
Pedantically, though, some radioactive elements decay in your body, so there are nuclei in your body right now that are different from when you ate, touched, or breathed them in.
For example, the milligram or two of potassium-40 present in your body will, over a billion years or so, become calcium-40.
- nickjarboe 10y agoWell, half of it will. The half life of potassium-40 is ~1.25 billion years. It decays to calcium-40 about 89% of the time and argon-40 11%. When using potassium-40 decay for dating, the usual method is determining the ratio of K-40 to radiogenic Ar-40 [1]. This is not easy and involves irradiating samples in a nuclear reactor. [1] https://en.wikipedia.org/wiki/Argon%E2%80%93argon_dating https://en.wikipedia.org/wiki/Argon%E2%80%93argon_dating