Assertion: bismuth | /r/HasAspect | long half-life
Facets:
value: extremely
type: DEGREE
value: at about 20 billion billion years
type: TEMPORAL
Source sentences:
text: However, in 2003, researchers at the Institut d'Astrophysique Spatiale in Orsay, France, found that bismuth does decay into thallium, but it has an extremely long half-life: about 20 billion billion years
text: However, in 2003, researchers at the Institut d’Astrophysique Spatiale in Orsay, France, found that bismuth does decay into thallium, although it has an extremely long half-life at about 20 billion billion years.