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  2. Xenon difluoride - Wikipedia

    en.wikipedia.org/wiki/Xenon_difluoride

    Xenon difluoride is a linear molecule with an Xe–F bond length of 197.73 ± 0.15 pm in the vapor stage, and 200 pm in the solid phase. The packing arrangement in solid XeF

  3. Lewis structure - Wikipedia

    en.wikipedia.org/wiki/Lewis_structure

    Lewis structure of a water molecule. Lewis structures – also called Lewis dot formulas, Lewis dot structures, electron dot structures, or Lewis electron dot structures (LEDs) – are diagrams that show the bonding between atoms of a molecule, as well as the lone pairs of electrons that may exist in the molecule.

  4. Three-center four-electron bond - Wikipedia

    en.wikipedia.org/wiki/Three-center_four-electron...

    [7] [8] While Lewis supported the viewpoint of expanded octet, invoking s-p-d hybridized orbitals and maintaining 2c–2e bonds between neighboring atoms, Langmuir instead opted for maintaining the octet rule, invoking an ionic basis for bonding in hypervalent compounds (see Hypervalent molecule, valence bond theory diagrams for PF 5 and SF 6). [9]

  5. Xenon compounds - Wikipedia

    en.wikipedia.org/wiki/Xenon_compounds

    Its crystal structure may allow it to replace silicon in silicate minerals. [13] The XeOO + cation has been identified by infrared spectroscopy in solid argon. [14] Xenon does not react with oxygen directly; the trioxide is formed by the hydrolysis of XeF 6: [15] XeF 6 + 3 H 2 O → XeO 3 + 6 HF. XeO

  6. Linnett double-quartet theory - Wikipedia

    en.wikipedia.org/wiki/Linnett_Double-Quartet_Theory

    The LDQ structure of the ground state of O 2 does not involve any electron pairs, in contrast with the Lewis structure of the molecule. Instead, the electrons are arranged as shown below. The LDQ structure of molecular oxygen in the ground state (3 Σ g − state). The oxygen nuclei are coloured red while the electrons are coloured either ...

  7. Are Christmas trees toxic to cats? How to cat-proof your home ...

    www.aol.com/christmas-trees-toxic-cats-cat...

    No matter if you decorate immediately after Halloween or you wait until post-Thanksgiving, Christmas trees are a staple of the winter season. From balsam firs to pines and spruces to cedars, there ...

  8. Electron pair - Wikipedia

    en.wikipedia.org/wiki/Electron_pair

    In chemistry, an electron pair or Lewis pair consists of two electrons that occupy the same molecular orbital but have opposite spins. Gilbert N. Lewis introduced the concepts of both the electron pair and the covalent bond in a landmark paper he published in 1916.

  9. 25 Black Friday deals that are worth the splurge: Kate Spade ...

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    New deals just dropped, including our favorite digital picture frame, every Apple device you can think of, and a Barbie dreamhouse any kid would be thrilled to open Christmas morning.