Solids & Liquids Quiz (3/22/16) Flashcards
The electrostatic attractions between molecules
Intermolecular forces
caused by the attraction between the opposite charges on polar molecules
Dipole-dipole force
Special type of dipole-dipole force involving hydrogen and a highly electronegative element
Hydrogen bonds
Force that acts on both polar and nonpolar molecules
Dispersion force
Solids that have well-defined, orderly, three dimensional patterns
Crystalline Solid
Solids that are not arranged in any particular pattern
Amorphous Solid
The temperature at which a solid changes to a liquid is this
Melting point
The direct change in state from the solid to the gaseous state
Sublimation
Occurs when a substance changes directly from a gas to a solid
Deposition
A crystal’s three-dimensional pattern
Crystal lattice
Substances that can form more than one type of crystal lattice
Polymorphous Elements
Pure elements that are polymorphous
Allotropic Elements
The energy released when gaseous particles form crystals
Lattice Energy