Assertion: protactinium's isotope | /r/HasProperty | discovered by o.h. göhring
Facets:
Source sentences:
text: The first isotope, protactinium-234, was discovered (1913) by American chemists Kasimir Fajans and O.H. Göhring.
text: The first isotope, protactinium-234, was discovered (1913) by American chemists Kasimir Fajans and O.H. Göhring.