| A | B |
| Concentration | The amount or percentage of a particular solute in a given amount of solution. |
| Acid | A substance that produces a hydronium atom when dissolved in water and registers between 7 and 0 on the pH scale. |
| Base | A substance that produces hydroxide ions when dissolved in water and registers between 7 and 14 on the pH scale. |
| pH | An inverse measurement of the concentration of the hydronium ions in a solution. Measured on a scale of 1-14 |
| salt | An ionic compound made from the neutralization of an acid with a base. |
| electron orbits/shells/levels/rings | The place where you find electrons; outside of the nucleus made up of various rings that hold certain amounts of electrons; 2, 8, 8 |
| Ion | A charged atom |
| Cation | A positively charged ion due to losing an electron |
| Anion | A negatively charged ion due to gaining an electron |
| isotope | Atoms of the same element that have different numbers of neutrons |
| polyatomic ion | A charged (ion) group of covalently bonded atoms |
| nomenclature | a naming system; rules for naming compounds and molecules |
| water | product formed from an acid and base reaction that includes the hydroxide ion |