Assertion: tritium's radioactivity | /r/CapableOf | decline to 1/16 of its original value
Facets:
value: in a decade
type: TEMPORAL
Source sentences:
text: The half-life of 147Pm is only 2.62 years, so in a decade the radioactivity of a promethium dial will decline to only 1/16 of its original value, making it safer to dispose of, compared to radium with its half life of 1600 years.