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Details Title: Science definitions Description: Atoms and Stuff ch. 4 Total Flash Cards: 17 Created: 11/09/2003 14:56:37	To study from this set of flash cards, or to create your own your own study flash cards, register HERE. If you are already a registered user, CLICK HERE.
Cards Term Formula Unit Definition The simplist collection of atoms from an ionic compound's formula can be established Term ionic compound Definition a compound composed of positive and negative ions that are combined so that the positive and negative charges are equal Term Lattice Energy Definition the energy released when one mole of an ionic crystalline compound is formed from gaseous ions. Term Polyatomic ion Definition a charged group of covalently bonded atoms Term ductility Definition the ability of a substance to be drawn, pulled, or extruded through a small opening to produce a wire Term Malleability Definition the ability of a substance to be hammered or beaten into thin sheets Term Metallic bonding Definition Chemical bonding that results from the attraction between metal atoms and the surrounding sea of electrons Term dipole Definition equal but opposite charges by a short distance Term dipole-dipole force Definition a force of attraction between polar molecules Term Metalic Bonding Definition Chemical bonding that results from the attraction between metal atoms and the surrounding sea of electrons Term Hybrid Orbital Definition orbitals of equal energy produced by the combination of two or more orbitals on the same atom Term Hybridization Definition the mixing of two or more atomic orbitals of simialr energies on the same atom to produce new orbitals or equal energies Term Hydrogen Bonding Definition the intermolecular force in which a hydrogen atom that is bonded to a highly electronegative atom is attracted to an unshaired pair of electrons of an electronegative atom in a nearby molecule Term intermolecular force Definition the force of attraction between molecules Term London dispersion force Definition an intermoleculer attraction resulting from the constant motion of electrons and the creation of istantaneuous dipoles Term molecular polority Definition the uneven distribution of molecular charge Term VSESPR theory Definition repulsion between the sets of of valence level electrons surrounding an atom causes these sets to be oriented as far apart as possible