protoactinium 详细解释

protoactinium

[.prəutəu'æktiniəm]

n. 镤

英英释义

名词 protoactinium:

a short-lived radioactive metallic element formed from uranium and disintegrating into actinium and then into lead

同义词：protactinium, Pa, atomic number 91

补充

protoactiniumprotoactinium[ˌprəutəuækˈtiniəm]n.1.镤

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