Chapter 12 Flashcards
Pairs of electrons that are shared between atoms
Bonding pair
A representation of a molecule that shows how the valence electrons are arranged among the atoms in a molecule
Lewis structure
When the atom is stable with two electrons
Duet rule
When the atom is stable with eight electrons
Octet rule
Two atoms sharing one electron pair
Single bond
Two atoms sharing two electron pairs
Double bond
Two atoms sharing three electron pairs
Triple bond
When more than one Lewis structure can be drawn from the molecule
Resonance
A force that holds groups of two or more atoms together and makes them function as a unit
Bond
Energy required to break a bond and form neutral isolated atoms; released when a bond is formed (Kj/mole)
Bond energy
A compound formed when a metal reacts with a nonmetal
Ionic compound
A covalent bond that contains bonded atoms that have an unequal attraction for the shared electrons
Polar covalent bond
The unequal sharing of electrons between two atoms; The relative ability of an atom in a molecule to attract shared electrons to itself
Electronegativity
When a molecule has a center of positive and a center of negative charge
Dipole moment
A mutual electrical attraction between the nuclei and valence electrons of different atoms that binds the atoms together
Chemical bond
