which statement about the half - life of a radioactive sample is true?\no it is an exact measure of the…

which statement about the half - life of a radioactive sample is true?\no it is an exact measure of the decay of an individual atom.\no it measures the tendency of a radioisotope to decay radioactively.\no it is affected by the concentration of the radioactive substance that is present.\no it can be calculated based on neutron number.

which statement about the half - life of a radioactive sample is true?\no it is an exact measure of the decay of an individual atom.\no it measures the tendency of a radioisotope to decay radioactively.\no it is affected by the concentration of the radioactive substance that is present.\no it can be calculated based on neutron number.

Answer

Brief Explanations:

The half - life of a radioactive sample is a measure of the tendency of a radioisotope to decay radioactively. It is not an exact measure of an individual atom's decay as radioactive decay is a probabilistic process. It is not affected by the concentration of the radioactive substance and cannot be calculated based solely on the neutron number.

Answer:

It measures the tendency of a radioisotope to decay radioactively.