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Chap 5 + 6
chap 5 6
37
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06/22/2005

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Term
valence electron
Definition
an outer s or p electron in the atom of a representative element
Term
octet rule
Definition
a rule that states that atoms of representative elements form bonds so as to have access to eight electrons
Term
Lewis dot structures
Definition
the representation of an element by its symbol with its valence electrons as dots
Term
ionic bond
Definition
the electrostatic force holding the positive and negative ions together in an ionic bond
Term
covalent bond
Definition
the force that bonds two atoms together by a shared pair/pairs of electrons
Term
single bond
Definition
not in book
Term
double bond
Definition
the sharing of two pairs of electrons between the same two atoms
Term
triple bond
Definition
the sharing of three pairs of electrons between the same three atoms
Term
resonance structures
Definition
a Lewis structure showing one of two or more possible Lewis structures
Term
electronegativity
Definition
the ability of an atom of an element to attract electrons to itself in a covalent bond
Term
polar bond
Definition
covalent bond that has a partial separation of charge due to the unequal sharing of electrons
Term
nonpolar bond
Definition
a covalent bond in which electrons are shared equally
Term
dipole
Definition
two poles-one positive and one negative-that may exist in a bond or molecule
Term
molecular dipole
Definition
the combined or net effect of all of the bond dipoles in a molecule as determined by the
Term
VSEPR
Definition
valence shell electron-pair repulsion theory. A theory that predicts that electron pairs either unshared or in a bond repel ea h other to the maximum extent
Term
nuclear geometry
Definition
not in book
Term
linear
Definition
not in book
Term
triangular
Definition
not in book
Term
V-shaped
Definition
not in book
Term
tetrahedral
Definition
not in book
Term
electromagnetic radiation
Definition
light (a form of energy
like heat or electricity)
Term
wavelength
Definition
the distance between two adjacent peaks
in a wave
Term
frequency
Definition
The number of times a specified periodic
phenomenon occurs within a specified interval
Term
electromagnetic spectrum
Definition
not in book
Term
model
Definition
a description or analogy used to visualize a
phenomenon
Term
quantized
Definition
electrons that are definite of discrete
distances from the nucleus
Term
energy levels
Definition
the discrete orbitals available to
an electron in a hydrogen atom
Term
ground state
Definition
the lowest available energy level in
an atom
Term
excited state
Definition
an energy level higher than the
lowest available energy level
Term
orbital diagrams
Definition
the representation of specific
orbitals of subshell as boxes and the electrons as
arrows in the boxes
Term
electron configuration
Definition
the designation of all the
electrons in an atom into specific shells and
subshells
Term
Aufbau Principle
Definition
a rule that states that
electrons fill the lowest available energy level first
Term
Pauli Exclusion Principle
Definition
a rule that states that
no two electrons can have the same spin in the same
orbital
Term
Hund’s Rule
Definition
a rule that states that electrons
occupy separate orbitals with parallel spins if
possible
Term
atomic radius
Definition
the distance from the nucleus of an
atom to the outermost electron
Term
ionization energy
Definition
the energy required to remove
an electron from a gaseous atom or ion
Term
electronegativity
Definition
the ability of an atom of an
element to attract electrons to itself in a covalent
bond
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