Shared Flashcard Set

Details

Exam 1
Vocab
19
Chemistry
Undergraduate 4
02/13/2013

Additional Chemistry Flashcards

 


 

Cards

Term
Crystal
Definition
3-D Periodic array of atoms.
Term
Crystallinity
Definition
Long range order and periodicity of atoms.
Term
Ideal Crystal
Definition
An infinite regular repetition in space of identical structural untis
Term
Basis / Motif
Definition
Group of atoms, ions, or molecules associated with each lattice point.
Term
Lattice
Definition
A regular periodic arrangement of points in space.
Term
Crystal Structure
Definition
Basis plus Lattice
Term
Unit Cell
Definition
A small repetitive volume that forms the complete lattice
Term
Lattice Constants
Definition
Dimensions of the unit cell
Term
Lattice Parameter
Definition
Dimensions of the unit cell and the associated angles between the axes
Term
Lattice Coefficients
Definition
Lattice constants expressed in unit cell dimensions
Term
Primitive Cell
Definition
Parallelpiped defined by primitive axes
Term
Equivalent Site
Definition
Lattice sites with fully identical surroundings
Term
Coordination Number
Definition
Number of nearest neighbors
Term
Amorphous Material
Definition
Material lacking long-range order, glassy
Term
Polymorphism
Definition
A material that can exist in more than one crystalline form
Term
Allotropy
Definition
Another name for Polymorphism
Term
Crystal system
Definition
scheme by which crystals are classified according to unit cell geometry
Term
Miller Indicies
Definition
Set of three integers that designate crystallographic planes
Term
Atomic Packing Factor
Definition
The fraction of space filled by atoms within a particular crystal structure
Supporting users have an ad free experience!