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  2. Tantalum - Wikipedia

    en.wikipedia.org/wiki/Tantalum

    Tantalum is a chemical element; it has symbol Ta and atomic number 73. Previously known as tantalium, [citation needed] it is named after Tantalus, a figure in Greek mythology. [11] Tantalum is a very hard, ductile, lustrous, blue-gray transition metal that is highly corrosion-resistant.

  3. Rich Text Format - Wikipedia

    en.wikipedia.org/wiki/Rich_Text_Format

    The Rich Text Format was the standard file format for text-based documents in applications developed for Microsoft Windows. Microsoft did not initially make the RTF specification publicly available, making it difficult for competitors to develop document conversion features in their applications.

  4. PDF - Wikipedia

    en.wikipedia.org/wiki/PDF

    As of August 2019, XFDF 3.0 is an ISO/IEC standard under the formal name ISO 19444-1:2019 - Document management — XML Forms Data Format — Part 1: Use of ISO 32000-2 (XFDF 3.0). [57] This standard is a normative reference of ISO 32000-2. PDF. The entire document can be submitted rather than individual fields and values, as was defined in PDF ...

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  6. Isotopes of tantalum - Wikipedia

    en.wikipedia.org/wiki/Isotopes_of_tantalum

    Natural tantalum (73 Ta) consists of two stable isotopes: 181 Ta (99.988%) and 180m Ta (0.012%). There are also 35 known artificial radioisotopes, the longest-lived of which are 179 Ta with a half-life of 1.82 years, 182 Ta with a half-life of 114.43 days, 183 Ta with a half-life of 5.1 days, and 177 Ta with a half-life of 56.56 hours. All ...

  7. Document file format - Wikipedia

    en.wikipedia.org/wiki/Document_file_format

    Office Open XML — .docx (XML-based standard for office documents) OpenDocument — .odt (XML-based standard for office documents) OpenOffice.org XML — .sxw (open, XML-based format for office documents) OXPS — Open XML Paper Specification (Windows 8.1 and above, older version is XPS used in Windows 7) PalmDoc — handheld document format ...

  8. Category:Tantalum - Wikipedia

    en.wikipedia.org/wiki/Category:Tantalum

    Pages in category "Tantalum" The following 6 pages are in this category, out of 6 total. This list may not reflect recent changes. ...

  9. Tantalum capacitor - Wikipedia

    en.wikipedia.org/wiki/Tantalum_capacitor

    A typical tantalum capacitor is a chip capacitor and consists of tantalum powder pressed and sintered into a pellet as the anode of the capacitor, with the oxide layer of tantalum pentoxide as a dielectric, and a solid manganese dioxide electrolyte as the cathode.