Assertion: decay's life | /r/HasProperty | t½
Facets:
Source sentences:
text: The half-life (T½) is the time when the expected number of nuclides that have decayed is equal to half of the original number.
text: The time dependence of radioactive decay is expressed in terms of the half-life (t ½ ), which is the time required for one-half of the radioactive atoms in a sample to undergo decay.