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  2. Electron configurations of the elements (data page) - Wikipedia

    en.wikipedia.org/wiki/Electron_configurations_of...

    However there are numerous exceptions; for example the lightest exception is chromium, which would be predicted to have the configuration 1s 2 2s 2 2p 6 3s 2 3p 6 3d 4 4s 2, written as [Ar] 3d 4 4s 2, but whose actual configuration given in the table below is [Ar] 3d 5 4s 1.

  3. Caesium - Wikipedia

    en.wikipedia.org/wiki/Caesium

    Caesium (IUPAC spelling; [9] also spelled cesium in American English) is a chemical element; it has symbol Cs and atomic number 55. It is a soft, silvery-golden alkali metal with a melting point of 28.5 °C (83.3 °F; 301.6 K), which makes it one of only five elemental metals that are liquid at or near room temperature .

  4. Template:Infobox caesium - Wikipedia

    en.wikipedia.org/wiki/Template:Infobox_caesium

    For example, {{Infobox uranium}} will read the table live from {{Infobox uranium isotopes}}. The headerbar provides View-Edit links to that Isobox. Main isotopes of uranium

  5. Caesium standard - Wikipedia

    en.wikipedia.org/wiki/Caesium_standard

    The meaning of the preceding definition is as follows. The caesium atom has a ground state electron state with configuration [Xe] 6s 1 and, consequently, atomic term symbol 2 S 1/2. This means that there is one unpaired electron and the total electron spin of the atom is 1/2. Moreover, the nucleus of caesium-133 has a nuclear spin equal to 7/2.

  6. File:Electron shell 055 Caesium - no label.svg - Wikipedia

    en.wikipedia.org/wiki/File:Electron_shell_055...

    If the file has been modified from its original state, some details may not fully reflect the modified file. Short title Electron shells for element: Z=055 Cs (Caesium): 2,8,18,18,8,1

  7. Periodic table (electron configurations) - Wikipedia

    en.wikipedia.org/wiki/Periodic_table_(electron...

    The periodic table of electron configurations shows the arrangement of electrons in atoms, organized by increasing atomic number and chemical properties.

  8. Isotopes of caesium - Wikipedia

    en.wikipedia.org/wiki/Isotopes_of_caesium

    Caesium-135 is a mildly radioactive isotope of caesium with a half-life of 1.33 million years. It decays via emission of a low-energy beta particle into the stable isotope barium-135. Caesium-135 is one of the seven long-lived fission products and the only alkaline one.

  9. Template:Periodic table (electron configuration) - Wikipedia

    en.wikipedia.org/wiki/Template:Periodic_table...

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