Presentation on theme: "Ionic Compounds Formed from positive and negative ions. Almost always have a metal and a nonmetal."— Presentation transcript:
Ionic Compounds Formed from positive and negative ions. Almost always have a metal and a nonmetal.
Ionic Compounds Exist mostly as crystalline solids. Conduct electricity when melted or dissolved in water. [http://liftoff.msfc.nasa.gov/academy/materials/topaz.gif]
Ionic Compound Names Example: NaCl Sodium Chloride When naming the compounds always list the positive ion first (metal) and end then nonmetal in – ide.
Ionic Compound Names Example: MgBr 2 Magnesium Bromide Example: Al 2 O 3 Aluminum Oxide
Ionic Compound Formulas Example: Aluminum Bromide AlBr 3 When writing formulas, place the positive ion first (metal!) and balancing the charges to make a neutral compound. Example: Magnesium Chloride
Ionic Compound Formulas Mg +2 and Cl -1 Cl -1 Final Formula: MgCl 2 [http://www.southwest.com.au/~jfuller/chemistry/magnesiumchloride.gif]
Ionic Compound Formulas Example: Sodium Oxide Na 2 O Example: Calcium Sulfide CaS
Transition Metal Ions [http://wps.prenhall.com/wps/media/objects/602/616516/Media_Assets/Chapter02/Text_Images/FG02_12.JPG]