The flashcards below were created by user
tdfa11
on FreezingBlue Flashcards.
-
chemical bond
mutual electrical attraction between the nuclei and valence electron of different atoms that binds them together
-
covalent bond
results from sharing of electrons pairs between two atoms
-
ionic bond
chemical bonding that results from the electrical attraction between cations and anions
-
nonpolar covalent bond
a covalent bond in which the bonding electron are shared equally by bonded atoms, resulting in a balanced distribution of electric charge
-
polar
uneven distribution of charge
-
polar covalent bond
covalent bond in which the bonded atoms have an unequal attraction for shared electrons
-
bond energy
energy required to break a chemical bond and form neutral isolated atom
-
bond length
average distance between two bonded atoms
-
chemical formula
indicates the relative numbers of atoms of each kind in a chemical compound by using atomic symbols and numerical subscripts
-
Double bond
covalent bond in which 2 pairs of electrons are shared between 2 atoms
-
electron dot notation
electron configuration notation in which only the valence electrons of an atom of a particular element are shown, indicated by dots around the element's symbol
-
Lewis structure
formulas in which atomic symbols represent nuclei and inner shell electrons, dot pairs or dashes between 2 atomic symbols represent electron pairs in covalent bonds and dots adjacent to only one atomic symbol represent unshared electrons
-
lone pair
pair of electrons that is not involved in bonding and that belongs exclusivley to one atom
-
molecular compound
chemical compund whose simplist units are molecules
-
Molecule
group atoms that are held together by chemical forces
-
Multiple bond
double or triple bonds
-
octet rule
chemical compounds tend to form so that each atom, by gaining, losing, or sharing electrons
-
resonance
bonding in molecules or ions that cant be correctly represented by a single lewis structure
-
single bond
covalent bond where on pair of electrons is shared between two atoms
-
sturctural formula
indicates the kind, number, arrangement, and bonds but not the unchared pairs o atoms in a molecule
-
Triple Bond
covalent bond in which 3 pairs of electrons are shared between 2 atoms
-
formula unit
simplest collection of atoms from which an ionic compunds formula can be established
-
Ionic compound
composed of positive and negative ions that are combined so that numbers of positive and negative charges are equal
-
lattice energy
energy released when one mole of an ionic compound is formed from gaseous ions
-
Polyatomic ion
an ion made of two or more atoms
-
Ductility
substance that can be drawn, pulled, or extrude through a small opening to produce a wire
-
Malleability
substance that can be hammered or beaten into thin sheets
-
metallic bonding
the chemical bonding that results from the attraction between metal atoms and surrounding sea of electrons
-
VSEPR Theory
repulsion between the sets of valence electrons levels and electrons surrounding an atom causes these to be oriented as far apart as possible
-
Hybridization
mixing of 2 or more atomic orbitals of similar energies on the same atom to produce new hybrid atomic orbitals of equal energies
-
Hybrid orbitals
orbitals of equal energy produced by the combination of two or more orbitals on the same atom
-
Dipole
created by equal but opposite charges that are seperated by a short distance
-
Hydrogen bonding
inter molecular force where a hydrogen bonded to a highly elegronegative atom is attracted to an unshared pair of electrons of an electronegative atom in a nearby molecule
-
London Dispersion Forces
intermolecular attractions resulting from the constant motion of electrons and the creation of instantaneous dipoles
|
|