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18 Cards in this Set
- Front
- Back
periodic law
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the statement that there is a periodic repition of chemical & physical properties of the elements when they are arranged by increasing the atomic #
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periods
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rows
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groups
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columns
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representative elements
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main group (1A-8A)
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transition elements
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groups 1B-8B
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metals
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elements that are generally shiny when smooth & clean, solid at room temperature, & good conductors of heat & electricity
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alkali metals
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group 1A metals (minus hydrogen)
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alkaline earth metals
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group 2A metals
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transition metals
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group B elements; has less than a full quota of elements
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inner transition metals
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group B elements that is contained in the f-block; filled outermost s orbital
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nonmetals
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gemerally gas pr britt;le, dull looking solids
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halogens
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reactive group 7A elements
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noble gases
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unreactive group 8A elements
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metalloids
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elements with physical & chemical properties of both metals & nonmetals
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ion
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an atom or a bonded group of atoms that has a positive or negative charge
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ionization energy
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energy required to remove an electron from a gaseous atom
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octet rule
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atoms tend to gain, lose, or share electrons in order to acquire a full set of 8 valence electrons
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electronegativity
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indicates the relative ability of its atoms to attract electrons in a chemical bond
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