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  2. Chlorine - Wikipedia

    en.wikipedia.org/wiki/Chlorine

    Chlorine is the second halogen, being a nonmetal in group 17 of the periodic table. Its properties are thus similar to fluorine, bromine, and iodine, and are largely intermediate between those of the first two. Chlorine has the electron configuration [Ne]3s 2 3p 5, with the seven electrons in the third and outermost shell acting as its valence ...

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

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

    As an approximate rule, electron configurations are given by the Aufbau principle and the Madelung rule. 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 ...

  4. Periodic table (electron configurations) - Wikipedia

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

    Configurations of elements 109 and above are not available. Predictions from reliable sources have been used for these elements. Grayed out electron numbers indicate subshells filled to their maximum. Bracketed noble gas symbols on the left represent inner configurations that are the same in each period. Written out, these are: He, 2, helium : 1s 2

  5. File:Electron shell 017 Chlorine.svg - Wikipedia

    en.wikipedia.org/wiki/File:Electron_shell_017...

    Date/Time Thumbnail Dimensions User Comment; current: 11:58, 18 April 2006: 800 × 860 (2 KB): File Upload Bot (Pumbaa80) * '''Description:''' Electron shell diagram for Chlorine, the 17th element in the periodic table of elements.

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

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

    Template: Periodic table (electron configuration) 5 languages. ... Na 1 - 12 Mg 2 - 13 Al 2 1 14 Si 2 2 15 P 2 3 16 S 2 4 17 Cl 2 5 18 Ar 2 6 [Ar] 4s: 3d: 4p: 19 K 1 ...

  7. List of elements by atomic properties - Wikipedia

    en.wikipedia.org/wiki/List_of_elements_by_atomic...

    This is a list of chemical elements and their atomic properties, ordered by atomic number (Z).. Since valence electrons are not clearly defined for the d-block and f-block elements, there not being a clear point at which further ionisation becomes unprofitable, a purely formal definition as number of electrons in the outermost shell has been used.

  8. Here's Why American Cheese Can't Legally Be Called Cheese - AOL

    www.aol.com/heres-why-american-cheese-cant...

    Sorry to break the news, but American cheese is not real cheese. It contains cheese, but not in large enough amounts to bear the title. The Food and Drug Administration (FDA) considers American ...

  9. Octet rule - Wikipedia

    en.wikipedia.org/wiki/Octet_rule

    The energy required to transfer an electron from a sodium atom to a chlorine atom (the difference of the 1st ionization energy of sodium and the electron affinity of chlorine) is small: +495.8 − 349 = +147 kJ mol −1. This energy is easily offset by the lattice energy of sodium chloride: −783 kJ mol −1. [3]