Hydrogen Dangling atom bond Silicon atom (a) (b) silicon.(b)Crystalline silicon. Note the variation in the inter-atomic distance for amorphous u Figure 3-10 Atomic arrangements in crystalline silicon and amorphous silicon (a)amorpho silicon
◆1. Space attice 1 Definition Space lattice consists of an array of regularly arranged geometrical points called lattice points. The(periodic) arrangement of these points describes the regularity of the arrangement of atoms in crystals 2. Two basic features of lattice points O Periodicity: Arranged in a periodic pattern 2 Identity: The surroundings of each point in the lattice are identical
◆ Ⅱ.Space lattice 1. Definition: Space lattice consists of an array of regularly arranged geometrical points, called lattice points. The (periodic) arrangement of these points describes the regularity of the arrangement of atoms in crystals. 2. Two basic features of lattice points ① Periodicity: Arranged in a periodic pattern. ② Identity: The surroundings of each point in the lattice are identical
a lattice may be one two, or three dimensional two dimensions b (1) (2) (3) Space lattice is a point array which represents the regularity of atom arrangements
A lattice may be one , two, or three dimensional two dimensions Space lattice is a point array which represents the regularity of atom arrangements (1) (2) (3) a b
Three dimensions Each lattice point has identical surrounding environment
Three dimensions Each lattice point has identical surrounding environment