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  2. 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.

  3. Lewis acids and bases - Wikipedia

    en.wikipedia.org/wiki/Lewis_acids_and_bases

    A Lewis acid (named for the American physical chemist Gilbert N. Lewis) is a chemical species that contains an empty orbital which is capable of accepting an electron pair from a Lewis base to form a Lewis adduct.

  4. Covalent bond - Wikipedia

    en.wikipedia.org/wiki/Covalent_bond

    The same two atoms in such molecules can be bonded differently in different Lewis structures (a single bond in one, a double bond in another, or even none at all), resulting in a non-integer bond order. The nitrate ion is one such example with three equivalent structures.

  5. Structural formula - Wikipedia

    en.wikipedia.org/wiki/Structural_formula

    Skeletal structural formula of Vitamin B 12.Many organic molecules are too complicated to be specified by a molecular formula.. The structural formula of a chemical compound is a graphic representation of the molecular structure (determined by structural chemistry methods), showing how the atoms are possibly arranged in the real three-dimensional space.

  6. Structure - Wikipedia

    en.wikipedia.org/wiki/Structure

    Lewis structures use a dot notation to represent the valence electrons for an atom; these are the electrons that determine the role of the atom in chemical reactions. [ 8 ] : 71–72 Bonds between atoms can be represented by lines with one line for each pair of electrons that is shared.

  7. Parents charged with abuse after child's botched circumcision ...

    www.aol.com/parents-charged-abuse-childs-botched...

    Prosecutors charged Tyler Wade Gibson, 35, with one felony count of unauthorized practice of medicine and one felony count of child abuse in connection to the incident, ...

  8. Radical (chemistry) - Wikipedia

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

    Lewis dot structure of a Hydroxide ion compared to a hydroxyl radical. In chemistry, a radical, also known as a free radical, is an atom, molecule, or ion that has at least one unpaired valence electron. [1] [2] With some exceptions, these unpaired electrons make radicals highly chemically reactive. Many radicals spontaneously dimerize. Most ...

  9. Millennials Are Screwed - The Huffington Post

    highline.huffingtonpost.com/articles/en/poor...

    Nearly a third of American workers now need some kind of state license to do their jobs, compared to less than 5 percent in 1950. In most other developed countries, you don’t need official permission to cut hair or pour drinks. Here, those jobs can require up to $20,000 in schooling and 2,100 hours of instruction and unpaid practice.