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This chemical element has the symbol Pa.

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Your new ahaProtactinium

Protactinium has 91 protons in every atomic nucleus. Changing that number would make a different element. Source: Protactinium ↗

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More from Chemical Symbols and Elements

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  1. 92This chemical element has the symbol U.RECALL
    Uranium

    Atomic number 92

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  2. 93This chemical element has the symbol Np.RECALL
    Neptunium

    Atomic number 93

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  3. 94This chemical element has the symbol Pu.RECALL
    Plutonium

    Atomic number 94

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