Assertion: berkelium's use | /r/HasProperty | commercial
Facets:
Source sentences:
text: Because of its rarity, berkelium presently has no commercial or technological use.
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: Because of its rarity, berkelium presently has no commercial or technological use.