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  2. Sulfur trioxide - Wikipedia

    en.wikipedia.org/wiki/Sulfur_trioxide

    The molecule SO 3 is trigonal planar.As predicted by VSEPR theory, its structure belongs to the D 3h point group.The sulfur atom has an oxidation state of +6 and may be assigned a formal charge value as low as 0 (if all three sulfur-oxygen bonds are assumed to be double bonds) or as high as +2 (if the Octet Rule is assumed). [7]

  3. Lewis acids and bases - Wikipedia

    en.wikipedia.org/wiki/Lewis_acids_and_bases

    The most common Lewis bases are anions. The strength of Lewis basicity correlates with the pK a of the parent acid: acids with high pK a 's give good Lewis bases. As usual, a weaker acid has a stronger conjugate base. Examples of Lewis bases based on the general definition of electron pair donor include: simple anions, such as H − and F −

  4. Lewis structure - Wikipedia

    en.wikipedia.org/wiki/Lewis_structure

    Expressing resonance when drawing Lewis structures may be done either by drawing each of the possible resonance forms and placing double-headed arrows between them or by using dashed lines to represent the partial bonds (although the latter is a good representation of the resonance hybrid which is not, formally speaking, a Lewis structure).

  5. SO3 - Wikipedia

    en.wikipedia.org/wiki/SO3

    SO3 may refer to Sulfur trioxide , SO 3 , a chemical compound of sulfur and the anhydride of sulfuric acid Sulfite , SO 2− 3 , a chemical ion composed of sulfur and oxygen with a 2− charge

  6. Talk:Sulfur trioxide - Wikipedia

    en.wikipedia.org/wiki/Talk:Sulfur_trioxide

    1 Picture of Lewis Structure. 1 comment. 2 Bonding. 5 comments. 3 Nomenclature. 3 comments. 4 Cookbook for sulfur trioxide? 1 comment. 5 Sigma Aldrich. 1 comment. 6 ...

  7. Electron pair - Wikipedia

    en.wikipedia.org/wiki/Electron_pair

    Gilbert N. Lewis introduced the concepts of both the electron pair and the covalent bond in a landmark paper he published in 1916. [1] [2] MO diagrams depicting covalent (left) and polar covalent (right) bonding in a diatomic molecule. In both cases a bond is created by the formation of an electron pair.

  8. Ligand - Wikipedia

    en.wikipedia.org/wiki/Ligand

    The bonding with the metal generally involves formal donation of one or more of the ligand's electron pairs, often through Lewis bases. [1] The nature of metal–ligand bonding can range from covalent to ionic. Furthermore, the metal–ligand bond order can range from one to three.

  9. Glossary of chemistry terms - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_chemistry_terms

    (Lewis acid) Any chemical species or molecular entity that acts as an electron pair acceptor when reacting with another species, forming a covalent bond by accepting a lone pair of electrons donated by the other species, which is known as a Lewis base. This definition was intended as a generalization of the Brønsted–Lowry definition by ...