| A | B |
|---|
| Family | Name given to vertical columns of the Periodic Table. |
| Period | Horizontal row in the Periodic Table which indicates energy |
| Valance | Electrons found in the outermost energy level and involved |
| Crystal | Object with regularly repeating arrangement of its atoms. |
| Lattice | Pattern formed by imaginary lines connection the atoms of a |
| BCC | Crystal type with 8 particles forming a cube with a 9th inside |
| FCC | Crystal type with 8 particles forming a cube and 6 more centered |
| in each face. Like Al | Gold and Copper. |
| HCP | Crystal type with 17 particles packed as closely as possible. |
| Like Cobalt | Titanium and Zinc. |
| Allotropes | Elements which occur in more than one form due to the way |
| Polymorphic | Having more than one form. |
| Rhombic | One of 7 simple crystal systems defined by three axes of |
| Monoclinic | One of 7 simple crystal systems defined by three axes of |
| Viscosity | Measurement of the opposition to flow in a fluid. |
| Molecule | Smallest particle of a covalent compound or nonmetallic |
| Grains | Microscopic crystals found in most crystalline solids. |
