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11 Cards in this Set

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