chem- chap 6
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Created by:
Rebecca_Johnson on January 28, 2012
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8 terms
Terms | Definitions |
|---|---|
 metal | good conductors of heat and electricity, high sheen, malleable; groups 1-12, with parts of 13-16, as well as inner transition elements |
| nonmetal | poor conductors of heat/ electricity; brittle |
| metalliods | have characteristics of both metals and nonmetals; parts of groups 13-17 |
| trends in the periotic table | atomic radius (decreases bot. L to top R); ionization energy (increases bot. L to top R. ); electron affinity (increases bot. L to top R.); electronegativity (increases bot. L to top R. ) |
| families | alkali metals, alkaline metals, transition metals, inner transition metals, noble gasses, halogens, metals, non-metals, metalloids |
| periodic law | when elements are arranged in order of increasing atomic number, there is a periodic repitition of their physical and chemical properties |
| anion | larger, negative, tend to be non-metals |
| cation | smaller, positive, tend to be metals |
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