Ions and Ionic Bonds

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 ____________________________

___________________________ 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

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 Chlorine to become LiCl Li has 1 valence electron (has 1 extra) Cl has 7 valence electrons (needs 1) Cl takes Li extra valence electron Cl becomes Cl- Li becomes Li+ Li+ is attracted to Cl- and form an ionic bond LiCl is the ionic compound that is formed

Lithium + Chlorine

Lithium + Oxygen