Part $1.$ Definitions $(10$ points$)$

Question $1.$ Match each concept with its respective definition.

$\backslash$table$[[$Concepts$,$Definitions$],[,\backslash$table$[[$The regular and predictable arrangement of the atoms over a short distance$-],[$usually one or two atom spacings.$]]],[,$The lengths of the sides of the unit cell and the angles between those sides.$],[,\backslash$table$[[$A regular repetitive arrangement of atoms in a solid that extends over a very$],[$large distance.$]]],[,\backslash$table$[[$Crystallographic directions that all have the same characteristics. Denoted by$],[$brackets$.]]],[,$A collection of points that divide space into smaller equally sized segments.$],[,\backslash$table$[[$The arrangement of the atoms in a material into a regular repeatable lattice. A$],[$crystal structure is fully described by a lattice and a basis.$]]],[,$Directions in a crystal along which atoms are in contact.$],[,$Materials, including glasses, that have no long$-$range order or crystal structure.$],[,$Materials comprising one or many small crystals or grains.$],[,$Having different properties in different directions.$],[,\backslash$table$[[$The characteristic of an element being able to exist in more than one crystal$],[$structure$,$ depending on temperature and pressure.$]]],[,\backslash$table$[[$A subdivision of the lattice that retains the overall characteristics of the entire$],[$lattice$.]]]]$

Concepts:

Short$-$range order

Long$-$range order

Amorphous material

Crystalline material

Lattice

Crystal structure

Unit cell

Lattice parameters

Close$-$packed direction

Allotropic$/$polymorphic