It tells what fraction of a radioactive sample remains after a certain length of time.
The half-life of the radioisotope Na-22 is 2.6 years.
The radioisotope with the shortest half-life among the following options is Polonium-214.
One-half of the original amount. That's precisely the definition of "half-life".
The half-life of a radioisotope is the time it takes for half of the radioactive nuclei in a sample to decay. It is a characteristic property of each radioisotope and determines the rate at which the isotopes decay.
The length of time it takes for half of a radioactive sample to decay
The half-life of the radioisotope Na-22 is 2.6 years.
It depends on the radioisotope. They do not all have the same half life.
The radioisotope with the shortest half-life among the following options is Polonium-214.
One-half of the original amount. That's precisely the definition of "half-life".
How long it takes for half of a sample to decay to another form.
16 hours.
The half-life of a radioisotope is the time it takes for half of the radioactive nuclei in a sample to decay. It is a characteristic property of each radioisotope and determines the rate at which the isotopes decay.
It is 432 years.
It is 7,380 years.
It is 15.02 hours.
It is 14.6 years.
It is 300,000 years.