Crystalline Materials & the Unit Cell

Crystalline

a highly regular arrangement of the constituent elements

Amorphous

large degree of disorder in their structure and have a broad range of melting points

Simple cubic

atoms touch along the edge

Body-centred cubic

atoms touch through the centre

Face-centred cubic

atoms touch along the face diagonal

X-ray diffraction

method used to determine the structure of crystalline solids

Metallic solids