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11 Cards in this Set
- Front
- Back
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anion
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an ion with a negative charge
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atomic radius
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one half the distance between the nuclei of two atoms of the same element when the atoms are joined
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cation
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an ion with a positive charge
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electronegativity
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the ability of and atom of an elemnt to attract electrons when the atom is in a compound
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ion
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an atom or 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 elecron from an atom
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metalliods
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has properties that are similar to those of metals and nonmetals
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metals
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good conductors of heat and electic current
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representative elements
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groups 1A-7A... display a wide range of physical and chemical properties
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nonmetals
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poor conductors of heat and electric current
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periodic law
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when elements are arranged in order of increasiing atomic number, there is a periodic repition of their physical and chemical properties.
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