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Rareprotactinium
The correct spelling is protactinium.
How to pronounce protactinium
noun
IPA: /ˌpɹəʊ.tækˈtɪn.i.əm/
Say it like: Pro-tac-tin-ium
The correct spelling is protactinium. A chemical element (symbol Pa) with atomic number 91: a dense, silvery-gray actinide metal.
Usage Examples
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Definition
noun
- 1.A chemical element (symbol Pa) with atomic number 91: a dense, silvery-gray actinide metal.
Similar words
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