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  2. List of chemistry mnemonics - Wikipedia

    en.wikipedia.org/wiki/List_of_chemistry_mnemonics

    K (Potassium) Ca Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr K indly Ca nnibals Sc are Ti mid V isitors, 'n' Cr uelly M e n ace Fe male Co mmunist Ni twits Cu ddling Z a n y Ga bbling Ge ese As tride Se veral Br utal K anga r oos.

  3. Noble gas - Wikipedia

    en.wikipedia.org/wiki/Noble_gas

    For example, the electron notation of phosphorus is 1s 2 2s 2 2p 6 3s 2 3p 3, while the noble gas notation is [Ne] 3s 2 3p 3. This more compact notation makes it easier to identify elements, and is shorter than writing out the full notation of atomic orbitals. [36] The noble gases cross the boundary between blocks—helium is an s-element ...

  4. Chemically inert - Wikipedia

    en.wikipedia.org/wiki/Chemically_inert

    The noble gases (helium, neon, argon, krypton, xenon and radon) were previously known as 'inert gases' because of their perceived lack of participation in any chemical reactions. The reason for this is that their outermost electron shells (valence shells) are completely filled, so that they have little tendency to gain or lose electrons.

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

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

    Note that these electron configurations are given for neutral atoms in the gas phase, which are not the same as the electron configurations for the same atoms in chemical environments. In many cases, multiple configurations are within a small range of energies and the irregularities shown below do not necessarily have a clear relation to ...

  6. Electron configuration - Wikipedia

    en.wikipedia.org/wiki/Electron_configuration

    For atoms with many electrons, this notation can become lengthy and so an abbreviated notation is used. The electron configuration can be visualized as the core electrons, equivalent to the noble gas of the preceding period, and the valence electrons: each element in a period differs only by the last few subshells. Phosphorus, for instance, is ...

  7. Noble gas notation - Wikipedia

    en.wikipedia.org/?title=Noble_gas_notation&...

    Noble gas#Electron configuration To a section : This is a redirect from a topic that does not have its own page to a section of a page on the subject. For redirects to embedded anchors on a page, use {{ R to anchor }} instead .

  8. Term symbol - Wikipedia

    en.wikipedia.org/wiki/Term_symbol

    These are notations for describing states of singly excited atoms, especially noble gas atoms. Racah notation is basically a combination of LS or Russell–Saunders coupling and J 1 L 2 coupling. LS coupling is for a parent ion and J 1 L 2 coupling is for a coupling of the parent ion and the excited electron. The parent ion is an unexcited part ...

  9. Noble gas (data page) - Wikipedia

    en.wikipedia.org/wiki/Noble_gas_(data_page)

    This page provides supplementary data about the noble gases, which were excluded from the main article to conserve space and preserve focus. Oganesson mostly not ...