Assertion: berkelium | /r/ObjectUse | used as target
Facets:
value: extensively
type: DEGREE
Source sentences:
text: Because of its rarity, berkelium presently has no commercial use, however, with its relatively long half-life and availability in microgram quantities, Bk-249 is used extensively as a target to synthesize heavier elements by charged particle bombardment.
text: Berkelium is short on applications but is used as a target in the production of even heavier elements.
text: Berkelium isn’t the only element used as a target, but it has been used to make a number of heavier elements, including the most recently discovered element, tennessine.