| A | B |
|---|
| the chart that groups elements by properties | periodic table |
| smallest whole bit of each kind of matter | atom |
| matter that conducts electricity easily | metal |
| matter that cannot be broken down into simpler substances | element |
| the number of protons in the nucleus | atomic number |
| smallest particle of a compound | molecule |
| two or more substances chemically combined | compound |
| two or more substances physically combined | mixture |
| mixture that is evenly spread throughout | solution |
| substance that dissolves in a solution | solute |
| universal solvent | water |
| part of the atom with a negative charge | electron |
| part of the atom with a positive charge | proton |
| part of the atom with no charge | neutron |
| number of protons plus the number of neutrons | atomic mass |
| type of mixture that separates if left alone | suspension |
| concentrated solution | solution with a lot of solute dissolved |
| dilute solution | solution with little solute dissolved |
| saturated solution | solution that cannot dissolve any more solute |
| nanotechnology | study of matter at the molecular scale |
| nanometer | one billionth of a meter |
