Chem ch 6 vocab

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Chem ch 6 vocab
2011-11-08 19:26:40

chem ch 6
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  1. Chemical Bond
    A mutual electrical attraction between the nucei and the valence electrons of different atoms that binds the atoms together
  2. Ionic Bonding
    chemical conding that results from the eletrical attraction between cations and anions
  3. Covalent Bonding
    Results from the sharing of electrons pairs between two atoms
  4. Nonpolar Covalent Bond
    A covalent bond in which the bonding electrons are shared equally by the bonded atoms resulting in a balance distribution of eletrical charge
  5. Polar
    Bonds that have an uneven distribution of charge
  6. Polar-covalent bonds
    Covalent bond in which the bonded atoms have an unequal attraction for the shared electrons
  7. Molecule
    a nuetral group of atoms that are held together by covalent bonds
  8. Molecular compound
    A chemical compound whose simplist units are molecules
  9. Chemical formula
    indicates the relative numbers of atoms of each kind of chemical compound by using atomic symbols
  10. Bond Energy
    Energy required to break a chemical bond and form nuetral isolated atoms
  11. Electron-dot notation
    An electron configuration notation in which only valence electrons of an atom of a particular element are shown
  12. Lewis Structure
    Formulas in which atomic Symbols represent nuclei and inner-shell electrons
  13. Structural formula
    indicates the kind,number,arrangement, and bonds but not the unshared pairs of the atoms in a molecule
  14. Single Bond
    A covalent bond in which one pair of electrons is shared between to atoms
  15. Multiple bond
    Double and triple bonds or multiple covalent bonds
  16. Resonance
    bond in molecules or ions that can't be correctly represented by a single Lewis structure
  17. Ionic compound
    Composed of positive and negative ions that are combined so that the number of positive and negative charges are equal
  18. Formula Unit
    Simplest collection of atoms from which an ionic shows the ratios of the ions present in a sample of any size
  19. Polyatomic ion
    a charged group of covalently bonded atoms
  20. Metallic bonding
    the chemical bonding that results from the attraction between metal atoms and the surounding sea of electrons
  21. malleability
    the ability of a substance to be hammered or beaten into thin sheets
  22. ductility
    the ability of a substance to be drawn,pulled,or extruded through a small opening to produce a wire
  23. VSEPR theory
    states that replusion between thesets of valence-level electrons surrounding an atom causes these sets to be oriented as far apart as possible
  24. Dipole
    created by equal but opposite charges that are seperated by a short distance
  25. Hydrogen bonding
    the inter molecular force in which a hydrogen atom that is bonded to a highly electronegative atom is attracted to an unshared pair of electrons of an electronegative atom in a nearby molecule
  26. London dispersion forces
    The intermolecular attractions resulting from the constant motion of electrons and the creation of instantaneous dipoles.