Crossword clue: a radioactive transuranic element; discovered by bombarding curium with alpha particles

The most common answer is californium (11 letters).

1 answer found in Letterora's clue database (Wikidata facts, Open Trivia DB, WordNet and Webster definitions — all licensed sources).

Possible answers

californium 11 letters wn-def

a radioactive transuranic element; discovered by bombarding curium with alpha particles