| A | B |
|---|
| CERAMICS | compounds or mixtures of compounds that are composed of metals (or semimetals) bonded with nonmetals |
| METALS | any of various opaque, fusible, ductile, and typically lustrous substances that are good conductors of electricity and heat |
| BRITTLE | easily broken, cracked, or snapped |
| CRYSTALLINE | a body that is formed by the solidification of a chemical element, a compound, or a mixture and has a regularly repeating internal arrangement of its atoms and often external plane faces |
| HARDNESS | resistance of a material to indentation under a static load or to scratching |
| CONDUCTOR | a material capable of transmitting another form of energy (as heat or sound) |
| INSULATOR | a material that is a poor conductor (as of electricity or heat) |
| ELASTIC | capable of recovering size and shape after deformation |
| CORROSION | to wear away gradually usually by chemical action <the metal was corroded beyond repair> |
| RESISTANCE | to withstand the force or effect of |
| COMPOUNDS | a distinct substance formed by chemical union of two or more ingredients in definite proportion by weight |
| MIXTURES | a portion of matter consisting of two or more components in varying proportions that retain their own properties |
| BONDING | to hold together in a molecule or crystal by chemical bonds |
| NONMETAL | a type of element that is not classified as a metal because most properties are not those of typical metals. found on the right side of the periodic table of elements |
| IONIC BOND | a chemical bond formed between oppositely charged species because of their mutual electrostatic attraction |
| COVALENT BOND | a chemical bond formed between atoms by the sharing of electrons |
| METALLIC BOND | weak type of bond, valence electrons enter a common free-electron cloud, weakest type of bonding |
