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23 Cards in this Set
- Front
- Back
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Alkali Metal |
Group IA metals(except Hydrogen) |
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Alkaline Earth Metal |
Group IIA metals |
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Representative Element |
groups of elements in the modern periodic table that are designated with an A (IA through VIIIA) and possess a wide range of chemical and physical properties |
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Representative Element |
the "main group" elements |
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Group |
a vertical column of elements in the periodic table; also called a family |
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period |
a horizontal row of elements in the modern periodic table |
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ion |
an atom or bonded group of atoms with a positive or negative charge |
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halogen |
a highly reactive group VIIA element |
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metal |
an element that is solid at room temperature, a good conductor of heat and electricity, and generally is shiny; most are malleable and ductile |
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metalloid |
an element, such as silicon or germanium, that has physical and chemical properties of both metals and nonmetals |
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noble gas |
an extremely unreactive group VIIIA element |
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nonmetal |
elements that are generally gases or dull, brittle solids that are poor conductors of heat and electricity |
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octet rule |
states that atoms lose, gain, or share electrons in order to aquire a full set of eight valence electrons (the stable electron configuration of a noble gas) |
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periodic law |
there is a periodic repetition of chemical and physical properties of the elements when arranged by increasing atomic number |
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valence orbitals |
occupied orbitals that hold electrons involved in chemical bonding |
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valence electrons |
outer shell electrons |
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electron-dot structure |
consists of an element's symbol surrounded by dots representing the atom's valence electrons |
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transition metals |
"d" block metals; elements (metals) located in the center of the periodic table |
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luster |
shiny appearance when smooth and clean |
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malleable |
able to be pounded into thin sheets |
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ductile |
able to be drawn into wires |
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oxidation number |
the number of electrons gained or lost by an atom when it forms a compound |
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inert |
non-reactive |
