| A | B |
|---|
| H | hydrogen |
| atom | A unit of matter, the smallest unit of an element |
| synthesis | Formation of a compound from simpler compounds or elements. |
| O | oxygen |
| chemistry | The science of the composition, structure, properties, and reactions of matter, especially of atomic and molecular systems. |
| decompositon | Separation into constituents by chemical reaction |
| Si | silicon |
| acid | Any of a class of substances whose aqueous solutions are characterized by a sour taste, the ability to turn blue litmus red, and the ability to react with bases and certain metals to form salts. |
| alpha radiation | the radiation of alpha particles during radioactive decay |
| Mg | magnesium |
| nuclear fission | nuclear reaction in which a massive nucleus splits into smaller nuclei with the simultaneous release of energy |
| valence eletrons | An electron in an outer shell of an atom that can participate in forming chemical bonds with other atoms |
| C | carbon |
| nuclear fusion | a nuclear reaction in which nuclei combine to form more massive nuclei with the simultaneous release of energy |
| beta radiation | radiation of beta particles during radioactive decay |
| Ca | calcium |
| base | Any of a class of compounds whose aqueous solutions are characterized by a bitter taste, a slippery feel, the ability to turn litmus blue, and the ability to react with acids to form salts. |
| pH scale | provides a measure on a scale from 0 to 14 of the acidity or alkalinity of a solution where 7 is neutral and greater than 7 is acidic and less than 7 is basic |
| K | potassium |
| chemical compound | a substance formed by chemical union of two or more elements or ingredients in definite proportion by weight |
