| Term | Definition |
|---|---|
| volume | the amount of space a sample of matter occupies |
| solid | the state of matter with a definite shape and volume |
| liquid | the state of matter with a definite volume but no definite shape |
| gas | the state of matter without a definite shape or definite volume |
| physical property | any characteristic of matter that you can observe without changing the identity of the substance that makes it up. |
| mass | the amount of matter in an object |
| density | the mass per unit volume of a substance |
| solubility | the ability for one material to dissolve into another |
| chemical property | a characteristic of matter that you observe as it reacts with or changes into a different substance. |
| metal | an element that is generally shiny and is easily pulled into wires or hammered into thin sheets |
| alkali metals | elements in group 1 on periodic table of elements in nature they occur only in compounds |
| alkaline earth metals | elements in group 2 on periodic table of elements react quickly with other elements |
|
transition elements |
elements in group 3-12 on periodic table of elements will react less quickly with oxygen
nonmetals-elements that have no metallic properties |
| nonmetals | elements that have no metallic properties |
| halogen | an element in group 17 of the periodic table can react with a metal and form a salt |
| noble gases | elements in group 18 only react with other elements in a laboratory setting |
| metalloid | an element that has both physical and chemical properties of both metals and nonmetals |
| semiconductor | conducts electricity at high temperatures, but not at low temperatures |
