Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
UVA Mod 3 Vocabulary
Words from Module 3
| Term | Definition |
|---|---|
| Solution | a liquid homogeneous mixture in which the solute is distributed evenly within the solute. |
| Pure Substance | Atoms of various elements (same or different) that combine with one another to become the smallest unit of a chemical compound |
| Homogeneous mixture | A solid, liquid, or gas mixture that has its different components mixed evenly within the substance |
| Heterogeneous mixture | A solid, liquid, or gas mixture that has its different components mixed unevenly within a substance |
| Emulsion | A homogenous mixture of 2 or more liquids that are normally not mixable |
| Colloid | A homogeneous mixture in which microscopically insoluble particles are suspended throughout another substance. |
| Salt | Chemical compound that forms from the reactions of an acid or base. |
| pH | A value from 0 to 14 that is used to specify how acidic or basic a compound is when dissolved in water. |
| Family | A group of elements with similar properties, which falls into columns on the periodic table |
| Metalloids | Elements whose properties are between those of metals and solid nonmetals. |
| Chemical bond | An attraction between atoms as they react to form compounds. |
| Chemical formula | A formula giving the number of atoms of the elements present in one molecule of a compound. |
| Compound | Matter that is composed of 2 or more elements. |
| Substance | Matter, either element or compound that has a specific compound, that has a specific compound and specific properties. |
| Acid | A compound that increases hydrogen ions when it is dissolved in a solution. |
| Base | A compound that increases the hydroxide ions when it is dissolved in an solution. |
| Ion | An atom or molecule with a positive or negative charge. |
| Atomic mass | The mass of an atom or its sub-atomic particles expressed in atomic mass units (amu) . Protons +Neutrons= atomic mass |
| Electrons | A negatively charged particle that orbits the nucleus of an atom |
| Electron Cloud | The region around the nucleus of an atom . It is mostly empty space where electrons orbit. |
| Neutrons | A neutral (no charge) particle that is in the nucleus of an atom |
| Nucleus | The dense core or center of the atom that contains the protons and neutrons |
| Protons | A positively changed particle that is in the nucleus of an atom |
| Subatomic particles | Particles within an atom |
| Atomic radius | The distance form an atom's nucleus to the outermost orbital of electrons |
| Chemical reactivity | The readiness of a substance to undergo a chemical reaction with another substance |
Created by:
mpolitz
Popular Science sets