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chapter 7
vocab
20
Chemistry
10th Grade
01/14/2010

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Term
delocalized electrons
Definition
free to move from one atom to the next in a metal
Term
cation
Definition
positive ion resualt after an ion looses an electron
Term
transition metals +
Definition
possible for d sublevel electrons to be lost (not just s)
Term
properties of ionic compounds
Definition
electoyete-  liquid/ desolves/ conducts/  solid no condictivity...... high melting
Term
formula unit
Definition
simplilest ratio represented in an ionic compound
Term
alloy
Definition
mixture of elements that have metallic properties ex. cast iorn, brass, steal
Term
anion
Definition
negative ion- resualt of an atom gaining electrons
Term
ionic bond
Definition
eletrostatoc forcce that hholds 2 oppistly charged particles together
Term
metallic bond
Definition
attraction of a metalllic cation for delocailized electrons
Term
lattice energy
Definition
energy that holds ionic compounds together
Term
electron sea model
Definition
all metal atoms in a metallic solid contribute there val electron to form a sea of electrons
Term
valence eletrons
Definition
outermost electrons from outer most energy level
Term
oxidation number
Definition
charge of an ion
Term
polytomic ion
Definition
groups of atoms that act as a unit and have an overall charge
Term
crystal lattice
Definition
3D geometric arrangment formed by alternative + and - particles
Term
monoatomic ion
Definition
ion formed  from only one ion... one ion with a charge
Term
chemical bond
Definition
force that holds 2 atoms together
Term
ionic compound
Definition
2 different types of atoms that contain ionic bonds
Term
electrolyte
Definition
an ioinin compund whos aqueous solution cunducts eleticitys
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