| A | B |
|---|
| element | a pure substance that cannot be broken down into simpler substances. Examples iron, hydrogen |
| pure substance | a substance in which there is only one type of atom |
| physical properties | density, boiling point, melting point, color, hardness |
| chemical properties | reactivity, flammability, rustability |
| metals | shiny, good conductor of electricity and heat, malleable |
| non metal | dull, poor conductor of electricity, brittle |
| metalloid | some are shiny and some are dull, some are good conductors some are not |
| compound | pure substance composed of two or more elements - chemically combined |
| Example of compound | NaCl is made with sodium (Na) + chlorine (Cl) |
| mixture | combination of two or more substances - not chemically combined. |
| solution | A mixture that appears to be a single substance |
| Example of a solution | salt water |
| chemistry | study of matter |
| solute | the substance (salt) that is dissolved into the solvent. |
| solvent | the liquid in a solution (water is known as the universal solvent) |
| Example of metalloid | Silicon, Tellurium, Arsenic |
| Example of non metal | Sulfur, Bromine, Phosphorous |
| Example of metal | Iron, Gold, Copper |
| Chemical Change | a change that occurs when one or more substances are changed into new substances with different properties |
| Physical Change | a usually reversible change in the physical properties of a substance, as size or shape. |
