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  2. Noble gas - Wikipedia

    en.wikipedia.org/wiki/Noble_gas

    As a result of a full shell, the noble gases can be used in conjunction with the electron configuration notation to form the noble gas notation. To do this, the nearest noble gas that precedes the element in question is written first, and then the electron configuration is continued from that point forward. For example, the electron notation of ...

  3. Nitrogen dioxide - Wikipedia

    en.wikipedia.org/wiki/Nitrogen_dioxide

    Nitrogen dioxide is poisonous and can be fatal if inhaled in large quantities. [8] Cooking with a gas stove produces nitrogen dioxide which causes poorer indoor air quality. Combustion of gas can lead to increased concentrations of nitrogen dioxide throughout the home environment which is linked to respiratory issues and diseases.

  4. 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 ...

  5. Category:Gases - Wikipedia

    en.wikipedia.org/wiki/Category:Gases

    Noble gases (8 C, 14 P) S. Solid-gas separation ... (notation) Nitrogen dioxide poisoning; O. Oxygen bar; P. ... Sleeping gas; Standard temperature and pressure;

  6. 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 ...

  7. Noble gas compound - Wikipedia

    en.wikipedia.org/wiki/Noble_gas_compound

    Structure of a noble-gas atom caged within a buckminsterfullerene (C 60) molecule. Noble gases can also form endohedral fullerene compounds where the noble gas atom is trapped inside a fullerene molecule. In 1993, it was discovered that when C 60 is exposed to a pressure of around 3 bar of He or Ne, the complexes He@C 60 and Ne@C 60 are formed ...

  8. Atomicity (chemistry) - Wikipedia

    en.wikipedia.org/wiki/Atomicity_(chemistry)

    Atomicity is the total number of atoms present in a molecule of an element. For example, each molecule of oxygen (O 2) is composed of two oxygen atoms.Therefore, the atomicity of oxygen is 2.

  9. NOx - Wikipedia

    en.wikipedia.org/wiki/NOx

    In atmospheric chemistry, NO x is shorthand for nitric oxide (NO) and nitrogen dioxide (NO 2), the nitrogen oxides that are most relevant for air pollution. [1] [2] These gases contribute to the formation of smog and acid rain, as well as affecting tropospheric ozone.