Assertion: tritium's life | /r/HasProperty | only 2.62 years
Facets:
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.
text: Promethium-based paints are significantly safer than radium; the half-life of 147Pm however, is only 2.62 years, it is therefore not too suitable for long-life applications.