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  2. Salt (chemistry) - Wikipedia

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

    A schematic electron shell diagram of sodium and fluorine atoms undergoing a redox reaction to form sodium fluoride. Sodium loses its outer electron to give it a stable electron configuration, and this electron enters the fluorine atom exothermically. The oppositely charged ions – typically a great many of them – are then attracted to each ...

  3. Ionic bonding - Wikipedia

    en.wikipedia.org/wiki/Ionic_bonding

    Sodium and fluorine atoms undergoing a redox reaction to form sodium ions and fluoride ions. Sodium loses its outer electron to give it a stable electron configuration, and this electron enters the fluorine atom exothermically. The oppositely charged ions – typically a great many of them – are then attracted to each other to form solid ...

  4. Electride - Wikipedia

    en.wikipedia.org/wiki/Electride

    An electride is an ionic compound in which an electron serves the role of the anion. [1] Solutions of alkali metals in ammonia are electride salts. [2] In the case of sodium, these blue solutions consist of [Na(NH 3) 6] + and solvated electrons: Na + 6 NH 3 → [Na(NH 3) 6] + + e −. The cation [Na(NH 3) 6] + is an octahedral coordination ...

  5. Lewis structure - Wikipedia

    en.wikipedia.org/wiki/Lewis_structure

    The ion has a charge of −1, which indicates an extra electron, so the total number of electrons is 18. Connect the atoms by single bonds. Each oxygen must be bonded to the nitrogen, which uses four electrons—two in each bond.

  6. File:Electron shell 011 Sodium.svg - Wikipedia

    en.wikipedia.org/wiki/File:Electron_shell_011...

    Date/Time Thumbnail Dimensions User Comment; current: 11:57, 18 April 2006: 800 × 860 (2 KB): File Upload Bot (Pumbaa80) * '''Description:''' Electron shell diagram for Sodium, the 11th element in the periodic table of elements.

  7. Voltage-gated sodium channel - Wikipedia

    en.wikipedia.org/wiki/Voltage-gated_sodium_channel

    The pore of sodium channels contains a selectivity filter made of negatively charged amino acid residues, which attract the positive Na + ion and keep out negatively charged ions such as chloride. The cations flow into a more constricted part of the pore that is 0.3 by 0.5 nm wide, which is just large enough to allow a single Na + ion with a ...

  8. Electron configuration - Wikipedia

    en.wikipedia.org/wiki/Electron_configuration

    In atomic physics and quantum chemistry, the electron configuration is the distribution of electrons of an atom or molecule (or other physical structure) in atomic or molecular orbitals. [1] For example, the electron configuration of the neon atom is 1s 2 2s 2 2p 6 , meaning that the 1s, 2s, and 2p subshells are occupied by two, two, and six ...

  9. Charge number - Wikipedia

    en.wikipedia.org/wiki/Charge_number

    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 of the Lewis dot structure. Since there is a negative charge on the outside of the Lewis dot structure, one electron needs to be added to the structure.