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  2. Neon - Wikipedia

    en.wikipedia.org/wiki/Neon

    This is an accepted version of this page This is the latest accepted revision, reviewed on 5 March 2025. Chemical element with atomic number 10 (Ne) This article is about the chemical element. For other uses, see Neon (disambiguation). Chemical element with atomic number 10 (Ne) Neon, 10 Ne Neon Appearance colorless gas exhibiting an orange-red glow when placed in an electric field Standard ...

  3. Atomicity (chemistry) - Wikipedia

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

    Monoatomic (composed of one atom). Examples include He , Ne , Ar , and Kr . All noble gases are monoatomic. Diatomic (composed of two atoms). Examples include H 2 , N 2 , O 2 , F 2 , and Cl 2 . Halogens are usually diatomic. Triatomic (composed of three atoms). Examples include O 3 .

  4. Monatomic gas - Wikipedia

    en.wikipedia.org/wiki/Monatomic_gas

    One mole of atoms contains an Avogadro number of atoms, so that the energy of one mole of atoms of a monatomic gas is =, where R is the gas constant. In an adiabatic process , monatomic gases have an idealised γ -factor ( C p / C v ) of 5/3, as opposed to 7/5 for ideal diatomic gases where rotation (but not vibration at room temperature) also ...

  5. Isotopes of neon - Wikipedia

    en.wikipedia.org/wiki/Isotopes_of_neon

    The abundances of the naturally occurring isotopes of neon. Neon (10 Ne) possesses three stable isotopes: 20 Ne, 21 Ne, and 22 Ne. In addition, 17 radioactive isotopes have been discovered, ranging from 15

  6. Sackur–Tetrode equation - Wikipedia

    en.wikipedia.org/wiki/Sackur–Tetrode_equation

    The Sackur–Tetrode constant, written S 0 /R, is equal to S/k B N evaluated at a temperature of T = 1 kelvin, at standard pressure (100 kPa or 101.325 kPa, to be specified), for one mole of an ideal gas composed of particles of mass equal to the atomic mass constant (m u = 1.660 539 068 92 (52) × 10 −27 kg ‍ [5]).

  7. Charge number - Wikipedia

    en.wikipedia.org/wiki/Charge_number

    One example is that someone can use the charge of an ion to find the oxidation number of a monatomic ion. For example, the oxidation number of + is +1. This helps when trying to solve oxidation questions. A charge number also can help when drawing Lewis dot structures. For example, if the structure is an ion, the charge will be included outside ...

  8. Neon compounds - Wikipedia

    en.wikipedia.org/wiki/Neon_compounds

    SiF 2 Ne 2+ can be made from neon and SiF 2+ 3 using mass spectrometer technology. SiF 2 Ne 2+ has a bond from neon to silicon. SiF 2+ 3 has a very weak bond to fluorine and a high electron affinity. [39] NeCCH +, a substituted acetylene, is predicted to be energetically stable by 5.9 kcal/mol, one of the most stable organic ions. [40]

  9. Noble gas compound - Wikipedia

    en.wikipedia.org/wiki/Noble_gas_compound

    Recently, [when?] xenon has been shown to produce a wide variety of compounds of the type XeO n X 2 where n is 1, 2 or 3 and X is any electronegative group, such as CF 3, C(SO 2 CF 3) 3, N(SO 2 F) 2, N(SO 2 CF 3) 2, OTeF 5, O(IO 2 F 2), etc.; the range of compounds is impressive, similar to that seen with the neighbouring element iodine ...

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