How to Make Ionic Bonds

Ionic Bonds Remember the Octet Rule? How many electrons do atoms need to be happy and stable? Ionic bonds are created when atoms are transferred (given away or taken/accepted) Ionic bonds are created by combining metals and nonmetals

Directions 1. Find your elements on the periodic table Potassium Bromine

Potassium = K Bromine = Br 2. Write the symbol for each element 3. Look at the group number to determine the number of valence electrons Potassium Bromine

4. Draw the valence electrons on a counter-clockwise direction for each element K Br

5. Figure out the number of electrons gained or lost K Br K wants to lose 1 electron Br needs 1 electron

6. Draw arrows to show the transfer of electrons K Br K 1+ + Br 1-  KBr 7. Write the charges for each element and the chemical formula for the reaction

Want to see another? Let’s try Magnesium and Iodine Find the elements on the periodic table 2. Write the symbols magnesium= Mgiodine= I 3. Look at the group number to find the valence electrons 2 valence electrons 7 valence electrons 4. Draw the valence in electrons in a counter-clockwise direction Mg I 5. Figure out the electrons gained or lost Mg loses 2 I gains 1 6. Draw the arrows to show the transfer 7. Write the charges and the formula Mg 2+ + I 1- 2  MgI 2 I

Now you try.... Magnesium and oxygen To name ionic bonds, take the name of the metal as the first word. For the second word, take the name of the nonmetal and add –ide on the end Magnesium oxide

Now you try.... Sodium and chlorine Sodium chloride

Now you try.... aluminum and chlorine Aluminum chloride