| A | B |
|---|
| acid | Any dissolved substance that donates Hydrogen ions to other solutes or to water molecules |
| atom | Smallest particle unique to an element; made of protons, neutrons & electrons |
| base | Any substance that accepts Hydrogen ions when dissolved in water |
| cohesion | Capacity to resist rupturing when stretched |
| compound | Substance made of 2 or more elements in unvarying proportions |
| covalent bond | Sharing of one or more electrons between atoms or groups of atoms |
| electron | Negatively charged unit of matter |
| element | Substance that can't be degraded by ordinary means into a substance having different properties |
| ion | An atom or molecule that has gained an overall negative or positive charge through the gain or loss of electrons |
| ionic bond | Two ions being held together by the attraction of their opposite charges |
| mixture | Two or more elements intermingled in varying proportions |
| molecule | A unit of matter in which chemical bonds hold 2 or more atoms together |
| neutron | A unit of matter, found in an atom's nucleus, which has mass but no electrical charge |
| pH scale | Measure of the concentration of free Hydrogen ions in solution (acid - base measurement) |
| proton | Positively charged particle in atom's nucleus |
