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The meaning of Protactinium

Protactinium – definition

noun

The chemical element of atomic number 91, a radioactive metal of the actinide series, occurring in small amounts as a product of the natural decay of uranium.

Usage examples:

Along the way, these disintegration series produce radioactive isotopes of protactinium, thorium, a…

Protactinium translation into English

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Protactinium

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Protactinium

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Protactinium, Protaktinium

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एक प्रकार का रसायनिक मूलतत्त्व, प्रोटैक्टीनियम

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Protoattinio, Protactinio

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프로탁티늄, 프로트악티늄

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Протактиний

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Protactinio

Word origin

early 20th century: from proto- ‘original, earlier’ + actinium, so named because one of its isotopes decays to form actinium.

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