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Chapter 8
Vocabualry and Notes
15
Chemistry
11th Grade
01/14/2010

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Term
Alloy
Definition
a mixture of elements that has metallic properties
Term
anion
Definition
an ion that has a negative charge
Term
cation
Definition
an ion that has a positive charge
Term
chemical bond
Definition
the force that holds two atoms together
Term
delocalized electrons
Definition
the electrons involved in metallic bonding that are free to move easily from one atom to the next throughout the metal and are not attached to a particular atom
Term
electrolyte
Definition
an ionic compound whose aqueous solution conducts an electric current
Term
electron sea modle
Definition
proposes that all metal atoms in a metallic solid contribute their valence electrons to from a "sea" of electrons, and can explain properties of metallic solids such as malleability, conduction, and ductility
Term
formula unit
Definition
the simpleness of ions represented in an ionic compound
Term
ionic bond
Definition
the electrostatic force that holds oppositely charged particles together in an ionic compound
Term
lattice energy
Definition
the energy required to separate one mole of the ions of an ionic compound
Term
metallic bond
Definition
the attraction of a metallic cation for delocalized electrons
Term
monatomic ion
Definition
an ion formed by only one atom
Term
oxidation number
Definition
the positive or negative charge of a monatomic ion
Term
oxyanion
Definition
a polyatomic ion composed of an element, usually a nonmetal, bonded to one or more oxygen atoms
Term
polyatomic ion
Definition
an ion made up of two or more atoms bonded together that acts as a single unit with a net charge
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