| A | B |
|---|
| element | a pure substance that can't be broken down |
| atoms | particles that make up elements |
| pure substance | substances made of only one type of particle |
| characteristic properties | boiling & melting pts.; density; solubility; flammability; reactivity |
| physical propeties | boiling & melting pts., solubility, density |
| chemical properties | flammability and reactivity |
| metals | the left side of the periodic table |
| metal propeties | shiny, good conductors, malleable, ductile |
| nonmetals | the right side of the periodic table |
| nonmetal propeties | poor conductors, dull, brittle, unmalleable |
| metalloids | follow the zigzag line on the periodic table |
| metalloid properties | properties of both metals and nonmetals |
| metalloid nickname | semiconductors |
| semiconductors | conduct electricity only when conditions are right |
| semiconductor conditions | light or temperature |
| Demitri Mendeleev | arrange elements in a pattern |
| metal state | mostly solids |
| nonmetal state | mostly gases |
