Assertion: americium | /r/HasProperty | synthesized at the university of california
Facets:
value: by leon o. morgan
type: OTHER
value: intentionally
type: MANNER
value: by glenn t. seaborg
type: OTHER
value: by albert ghiorso
type: OTHER
value: by ralph a. james
type: OTHER
Source sentences:
text: Although americium was likely produced in previous nuclear experiments, it was first intentionally synthesized, isolated and identified in late autumn 1944, at the University of California, Berkeley, by Glenn T. Seaborg, Leon O. Morgan, Ralph A. James, and Albert Ghiorso.