| A | B |
|---|
| proton | located in the nuclues - positive charge |
| neutron | located in the nucleus - neutral charge |
| electron | located outside the nucleus - negative charge |
| element | smallest part of a substance retaining the properties |
| compound | 2 or more elements combined chemically |
| isotopes | atoms of the same element with different numbers of neutrons |
| ionic bond | one or more electrons are TRANSFERRED from one atom to another |
| covalent bond | 2 or more atoms SHARE electrons |
| mixture | 2 or more elements or compunds that mix together |
| solution | a type of mixture where the substance dissolves (needs NO SHAKING) |
| solvent | the substance that something is dissolved IN in a solution |
| solute | the substance that is dissolved (U put it in) in a solution |
| suspension | a mixture where the substances settle out (needs SHAKING) |
| pH scale | scale used to measure the number of H and OH ions in a substance (0-14) |
| buffer | a weak acid or base that will not allow a sudden pH change |
| acid | has hydrogen (H) ions - pH 0 to 6 - 0 is strong and 6 is weak |
| base | has hydronium (OH) ions - pH 8 to 14 - 8 is weak and 14 is strong |
| neutral | pH of 7 - like water |
