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  2. Iodine-125 - Wikipedia

    en.wikipedia.org/wiki/Iodine-125

    Iodine-125 (125 I) is a radioisotope of iodine which has uses in biological assays, nuclear medicine imaging and in radiation therapy as brachytherapy to treat a number of conditions, including prostate cancer, uveal melanomas, and brain tumors. It is the second longest-lived radioisotope of iodine, after iodine-129.

  3. Extended periodic table - Wikipedia

    en.wikipedia.org/wiki/Extended_periodic_table

    This is an accepted version of this page This is the latest accepted revision, reviewed on 22 February 2025. Periodic table of the elements with eight or more periods Extended periodic table Hydrogen Helium Lithium Beryllium Boron Carbon Nitrogen Oxygen Fluorine Neon Sodium Magnesium Aluminium Silicon Phosphorus Sulfur Chlorine Argon Potassium Calcium Scandium Titanium Vanadium Chromium ...

  4. Isotopes of antimony - Wikipedia

    en.wikipedia.org/wiki/Isotopes_of_antimony

    Download as PDF; Printable version; ... 125 Te: 7/2+ 125m1 Sb 1971.25(20) keV ... International Union of Pure and Applied Chemistry. 19 October 2005. Half-life, spin ...

  5. Germanium - Wikipedia

    en.wikipedia.org/wiki/Germanium

    2.1 Chemistry. 2.2 Isotopes. 2.3 Occurrence. ... Download as PDF; Printable version; In other projects ... Cladding 125 µm; Buffer 250 µm;

  6. Iodine - Wikipedia

    en.wikipedia.org/wiki/Iodine

    This is an accepted version of this page This is the latest accepted revision, reviewed on 16 February 2025. This article is about the chemical element. For other uses, see Iodine (disambiguation). Chemical element with atomic number 53 (I) Iodine, 53 I Iodine Pronunciation / ˈ aɪ ə d aɪ n, - d ɪ n, - d iː n / (EYE -ə-dyne, -⁠din, -⁠deen) Appearance lustrous metallic gray solid ...

  7. Radioactive tracer - Wikipedia

    en.wikipedia.org/wiki/Radioactive_tracer

    125 I is frequently used in radioimmunoassays because of its relatively long half-life (59 days) and ability to be detected with high sensitivity by gamma counters. [8] 129 I is present in the environment as a result of the testing of nuclear weapons in the atmosphere. It was also produced in the Chernobyl and Fukushima disasters.

  8. Osmium tetroxide - Wikipedia

    en.wikipedia.org/wiki/Osmium_tetroxide

    4.2 Coordination chemistry. 4.2.1 Oxofluorides. 5 Uses. ... Download QR code; Print/export Download as PDF; Printable version; In other projects Wikimedia Commons;

  9. Transition state analog - Wikipedia

    en.wikipedia.org/wiki/Transition_state_analog

    Enzyme-catalyzed reactions lower the overall activation energy of a reaction. The transition state of a structure can best be described in regards to statistical mechanics where the energies of bonds breaking and forming have an equal probability of moving from the transition state backwards to the reactants or forward to the products.