1. Subscribersonhouse
    Fast and Curious
    slatington, pa, usa
    Joined
    28 Dec '04
    Moves
    52619
    07 Jan '16 15:18
    https://en.wikipedia.org/wiki/Zwitterion

    Neutral ions with internal plus and minus charges, as opposed to molecules like H2O, water, which has a dipolar charge. Amino acids are one example.