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  2. Beryllium hydride - Wikipedia

    en.wikipedia.org/wiki/Beryllium_hydride

    Beryllium hydride (systematically named poly [beryllane (2)] and beryllium dihydride) is an inorganic compound with the chemical formula (BeH. 2) n (also written ([BeH. 2]) n or BeH. 2). This alkaline earth hydride is a colourless solid that is insoluble in solvents that do not decompose it.

  3. Valence electron - Wikipedia

    en.wikipedia.org/wiki/Valence_electron

    In chemistry and physics, valence electrons are electrons in the outermost shell of an atom, and that can participate in the formation of a chemical bond if the outermost shell is not closed. In a single covalent bond, a shared pair forms with both atoms in the bond each contributing one valence electron. The presence of valence electrons can ...

  4. Ammonia borane - Wikipedia

    en.wikipedia.org/wiki/Ammonia_borane

    Ammonia borane (also systematically named ammoniotrihydroborate [citation needed]), also called borazane, is the chemical compound with the formula H 3 NBH 3.The colourless or white solid is the simplest molecular boron-nitrogen-hydride compound.

  5. Boron monohydride - Wikipedia

    en.wikipedia.org/wiki/Boron_monohydride

    Boron monohydride is formed when the boron anion B − reacts with a hydrogen ion H +. It is also formed when atomic boron reacts with hydrogen. B + H 2 → BH + H. There is too much energy in the reaction for BH 2 to be stable. [4] Boron monohydride probably exists in sunspots, [5] but as of 2008 has not been detected.

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

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

    This page shows the electron configurations of the neutral gaseous atoms in their ground states. For each atom the subshells are given first in concise form, then with all subshells written out, followed by the number of electrons per shell. For phosphorus (element 15) as an example, the concise form is [Ne] 3s 2 3p 3.

  7. Diborane - Wikipedia

    en.wikipedia.org/wiki/Diborane

    Diborane (6), commonly known as diborane, is the chemical compound with the formula B 2 H 6. It is a highly toxic, colorless, and pyrophoric gas with a repulsively sweet odor. Given its simple formula, borane is a fundamental boron compound. It has attracted wide attention for its electronic structure.

  8. Linear molecular geometry - Wikipedia

    en.wikipedia.org/wiki/Linear_molecular_geometry

    The linear molecular geometry describes the geometry around a central atom bonded to two other atoms (or ligands) placed at a bond angle of 180°. Linear organic molecules, such as acetylene (HC≡CH), are often described by invoking sp orbital hybridization for their carbon centers. According to the VSEPR model (Valence Shell Electron Pair ...

  9. Walsh diagram - Wikipedia

    en.wikipedia.org/wiki/Walsh_diagram

    Six electron AH 3 molecules should have a planar conformation. It can be seen that the HOMO, 1e’, of planar AH 3 is destabilized upon bending of the A-H bonds to form a pyramid shape, due to disruption of bonding. The LUMO, which is concentrated on one atomic center, is a good electron acceptor and explains the Lewis acid character of BH 3 ...