PROTACTINIUM

/ˌpɹəʊ.tækˈtɪn.i.əm/ Scrabble 18 Words With Friends 23

Scrabble letter values: P₃R₁O₁T₁A₁C₃T₁I₁N₁I₁U₁M₃ = 18

Definition

noun a short-lived radioactive metallic element formed from uranium and disintegrating into actinium and then into lead. — synonyms: protoactinium, Pa, atomic_number_91

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