Assertion: protactinium's isotope | /r/HasProperty | thorium -238
Facets:
Source sentences:
text: For example, when uranium-238 breaks apart, it forms a new isotope, thorium -238.
text: For example, when uranium-238 breaks apart, it forms a new isotope, thorium -238.
text: For example, when uranium-238 breaks apart, it forms a new isotope, thorium -238.