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Recognize that there are more...
| Term | Definition |
|---|---|
| periodic table | a chart that organizes information about all of the known elements according to their properties |
| period | chemistry a horizontal row of elements in the periodic table |
| group | a vertical column of elements in the periodic table elements in a group share chemical properties |
| valence electron | an electron that is found in the outer most shell of an atom and that determines the atoms chemical propertys |
| reactivity | the process by which an unstable nucleus gives off nuclear radiation |
| metlalloid | Reactivity-describes how likely an element is to form bonds with other elements |
| inert | unable to react chemically under normal circumstances |