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  2. Electronegativities of the elements (data page) - Wikipedia

    en.wikipedia.org/wiki/Electronegativities_of_the...

    Electronegativity is not a uniquely defined property and may depend on the definition. The suggested values are all taken from WebElements as a consistent set. Many of the highly radioactive elements have values that must be predictions or extrapolations, but are unfortunately not marked as such.

  3. Electrophilic aromatic directing groups - Wikipedia

    en.wikipedia.org/wiki/Electrophilic_aromatic...

    The methyl group in toluene is small and will lead the ortho product being the major product. On the other hand, the t-butyl group is very bulky (there are 3 methyl groups attached to a single carbon) and will lead the para product as the major one. Even with toluene, the product is not 2:1 but having a slightly less ortho product.

  4. Electronegativity - Wikipedia

    en.wikipedia.org/wiki/Electronegativity

    Electronegativity, symbolized as χ, is the tendency for an atom of a given chemical element to attract shared electrons (or electron density) when forming a chemical bond. [1] An atom's electronegativity is affected by both its atomic number and the distance at which its valence electrons reside from the charged nucleus. The higher the ...

  5. Periodic trends - Wikipedia

    en.wikipedia.org/wiki/Periodic_trends

    However, in group XIII (Boron family), the electronegativity first decreases from boron to aluminium and then increases down the group. It is due to the fact that the atomic size increases as we move down the group, but at the same time the effective nuclear charge increases due to poor shielding of the inner d and f electrons.

  6. Bent's rule - Wikipedia

    en.wikipedia.org/wiki/Bent's_rule

    In chemistry, Bent's rule describes and explains the relationship between the orbital hybridization and the electronegativities of substituents. [1] [2] The rule was stated by Henry A. Bent as follows: [2] Atomic s character concentrates in orbitals directed toward electropositive substituents.

  7. Electronegative - Wikipedia

    en.wikipedia.org/?title=Electronegative&redirect=no

    From Wikipedia, the free encyclopedia. Redirect page

  8. Sexual abuser financially manipulated victims - AOL

    www.aol.com/sexual-abuser-financially...

    A sex offender who police said tried to "financially and emotionally manipulate" his victims has been jailed for 25 years. Stephen Gallagher, of Normandy Avenue in Colchester, was found guilty by ...

  9. Robert Thomas Sanderson - Wikipedia

    en.wikipedia.org/wiki/Robert_Thomas_Sanderson

    In 1951, Sanderson developed the idea of electronegativity equalization, stating two bonding atoms will equalize their Mulliken electronegativity. [1] He would later further revise his own scale of electronegativity to adhere to the 4.00 value of fluorine found in the more common Pauling scale, as well as apply his principle to the calculation of polar covalent bonds, calculating partial ...