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  <description>Latest links in the Protactinium category</description>
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    <title>Radiochemistry of Protactinium</title>
    <link>https://e-sygoing.link/link/5305272-radiochemistry-of-protactinium</link>
    <description>Full text of the monograph by H. W. Kirby (Mound Laboratory, Miamisburg, Ohio). [PDF]</description>
    <pubDate>Fri, 24 Apr 2026 16:22:03 -0400</pubDate>
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    <title>Protactinium</title>
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    <description>Data tables and historic information.</description>
    <pubDate>Sat, 01 Nov 2025 03:15:12 -0400</pubDate>
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    <title>EnvironmentalChemistry.com: Protactinium</title>
    <link>https://e-sygoing.link/link/5305277-environmentalchemistrycom-protactinium</link>
    <description>Atomic structure, chemical and physical properties, and table of nuclides.</description>
    <pubDate>Tue, 14 Oct 2025 11:27:55 -0400</pubDate>
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    <title>ChemicalElements.com: Protactinium</title>
    <link>https://e-sygoing.link/link/5305274-chemicalelementscom-protactinium</link>
    <description>Basic information, atomic structure, and isotopes.</description>
    <pubDate>Mon, 21 Oct 2024 09:21:22 -0400</pubDate>
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    <title>WebElements: Protactinium</title>
    <link>https://e-sygoing.link/link/5305278-webelements-protactinium</link>
    <description>Extensive information on history, uses, occurrence, compounds, and properties.</description>
    <pubDate>Sun, 29 Sep 2024 16:17:32 -0400</pubDate>
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