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18 Cards in this Set
- Front
- Back
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the statmenbt that there is periodic reptition of chemical and physical properties of the elemtns when they are arranged by increasing atomic number
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periodic law
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ionization energy decreases as you move down a group. size increases as going down
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groups
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ionization energy increases from left to right because with an increase in nuclear charge of each successive element this produces an increase hold on the vallece electrons
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periods
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grop 1a to 8a- elemnts passes a wide range of chemical and physical properties
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represenative elementss
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grups 1b through 8 b
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transtion elements
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are elements that are generally shinny when smooth and clean solid at room temperature and good conductors of electricity
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metals
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1A elemtns
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alkali metals
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2a elements
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alkaline earth metals
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electrons in outermost eneryllevel
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valence lectrons
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the atomic radi decreases as you move from left to right because of the increase in the positive charge of nucleus
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periodic rows
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elements generally gases or brittle dull looking solids
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nonmetals
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highly rective group 7a elements
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halogens
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extremely unreactive group 8a elements
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noble gases
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are elements with physical and chemical properties of both metals and nonmetals
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metalloids
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is an atom or a bonded group of atoms that has a positive or negative charge
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ion
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as the engery required to remove an electron from a gaseous lithium atom
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ionization energy
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states that atoms tend to gain lose or share elctrons in order to acquire a full set of eight valence electrons
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octet rule
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the relative ability of its atoms to attract electrons in a chemical bond
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electronegativity
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