Assertion: md's isotope | /r/HasProperty | notable
Facets:
value: for being the first isotope
type: CAUSE
value: for revealing the existence of mendelevium
type: PURPOSE
Source sentences:
text: It produced a new isotope, 256Md, which was notable for revealing the existence of mendelevium and also for being the first isotope synthesized on a one-atom-at-a-time basis.