1. Ion = Atom that has lost or gained electrons; has a charge (+ or -)
Atoms that ______________ electrons
Have a ____________________________ charge
= +, 2+, 3+, etc.
Called ____________________________ (“Cat Pos”)
= -, 2-, 3-, etc.
Called ____________________________

2. ___________________________
Chemical bonds __________________________________________________________________ that holds atoms or ions together
___________________________
bond formed by the attraction between ______________________________ charged ions
There is an electrostatic attraction between the ions
Electrons are ___________________________
Example: Na and Cl
Cl takes an electron from Na
Cl becomes Cl-
Na becomes Na+
Na+ is attracted to Cl-
Form ionic compound NaCl

3. Most ionic compounds are called ____________________
Ionic bonds occur between a ___________________ and a ____________________
Metals on left side of Periodic Table
Nonmetals on right side of Periodic Table
Most ionic compounds are called ____________________
Example: Lithium combines with Bromine to become LiBr
Li has 1 valence electron (has 1 extra)
Br has 7 valence electrons (needs 1)
Br takes Li extra valence electron
Br becomes Br-
Li becomes Li+
Li+ is attracted to Br- and form an ionic bond
LiBr is the ionic compound that is formed