Assertion: boron's isotope | /r/HasProperty | b-11 80.1%
Facets:
Source sentences:
text: Boron has two naturally-occurring stable isotopes, B-11 (80.1%) and B-10 (19.9%).
text: Boron has two naturally-occurring stable isotopes, B-11 (80.1%) and B-10 (19.9%).