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17 Cards in this Set
- Front
- Back
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Periodic Law |
Sates that repeating chemical and physical properties of elements change periodically with the element's atomic number |
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Periodic |
describes something that occurs or repeats at regular intervals |
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Metals |
Shiny, malleable, and good conductors of thermal energy and electric currents. Atoms have few electrons in their outermost layer |
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Nonmetals |
Complete set of electrons on outermost layer. Not shiny, malleable, and poor conductors of thermal energy and electric current |
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Metalloids |
Shiny, but brittle, and are good conductors of electric current and thermal energy-ish |
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Period |
horizontal row of elements on the periodic table |
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Group |
vertical column of elements on the periodic table |
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Reactive Element |
elements whose atoms undergo such processes so they can combine to form a compund |
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Element |
substance made f only one type of atom |
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Valence Shell |
outermost layer of an atom where electrons can be found |
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Transistion Metals |
Contains metals, less reactive than alkaline Earth metals, and don't give away electrons as easily as atom in Alkali and Alkaline earth metals. |
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Alkaline Earth Metals |
Very reactive, have high density and 2 valence electrons |
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Alkali Metals |
Most reactive metals, soft low density, and only contains 1 valence electron |
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Lanthanides |
Shiny, reactive metals which is in the 1st row at the bottom of the periodic table |
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Actinides |
radioactive metals that are in the 2nd row on the bottom of the perioidic table |
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Halogens |
very reactive nonmetals because their atoms only need to gain one more electron in order t have a complete outer most layer |
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Noble Gases |
un-reactive nonmetals with a full set of electrons on the outermost level |
