Assertion: technetium's life | /r/HasProperty | the time
Facets:
Source sentences:
text: The half Life of a radioactive element is the time it takes for half of a sample of the element to break down.
text: The half Life of a radioactive element is the time it takes for half of a sample of the element to break down.
text: One half-life is the time it takes for half of the unstable atoms to undergo radioactive decay.
text: The half-life of a radioactive nuclide is the time it takes for half of the sample to undergo decay.