Basics of Crystal Structure Flashcards
non-crystalline solid is a solid that lacks the long-range
order that is characteristic of a crystal
amorphous
the ratio of volume occupied by the atoms in a unit cell to the total volume of the unit cell
atomic packing factor
has lattice points at the eight corners of the unit cell plus an additional point at the center of the cell.
body-centered cubic
defined as the number of equidistant nearest neighbors that an atom has in a given structure
coordination number
the symmetrical three-dimensional arrangement of atoms inside a crystal
crystal lattice
is a solid material whose constituents are arranged in a highly ordered microscopic structure,
crystalline
mass per unit volume
density
has lattice points at the eight corners of the unit cell plus additional points at the centers of each face of the unit cell.
face-centered cubic
is the simplest repeating unit in a simple cubic structure.
simple cubic
the smallest group of atoms of a substance that has the overall symmetry of a crystal of that substance
unit cell
ordered arrangement of atoms, ions or molecules in a crystalline material
crystal structure
how many number of atoms per unit cell in a simple cubic
1
what is the volume of unit cell in simple cubic
8r^3
APF of simple cubic
52%
how many number of atoms per unit cell in a body centered cube
2
