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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 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.

  4. 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 .

  5. 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

  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. Atomic fountain - Wikipedia

    en.wikipedia.org/wiki/Atomic_fountain

    The idea of the atomic fountain was first proposed in the 1950s by Jerrold Zacharias. [6] [7] Zacharias attempted to implement an atomic fountain using a thermal beam of atoms, under the assumption that the atoms at the low-velocity end of the Maxwell–Boltzmann distribution would be of sufficiently low energy to execute a reasonably sized parabolic trajectory. [8]

  8. Template:Infobox caesium/sandbox - Wikipedia

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

    Notably, that is aluminium, sulfur, caesium, not aluminum, sulphur, cesium. For other English variant words (vapor vs. vapour) the infobox reads |engvar= . The parameter should be set in the article , and has options: en-US (or blank; default), en-GB, en-OED.

  9. Template:Infobox caesium isotopes - Wikipedia

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

    For example, {{Infobox uranium isotopes}}, as used on page Isotopes of uranium. The main isotopes table is reused in the regular Infobox: {{ Infobox uranium }} . Basic example