by kelly johnson & erin foster

How to draw an ionic bond

1- Write the symbols for each element.

2 - Use Fruit Pebbles (or other cereal/candy with more

than one color) to create the Lewis structure for each.

3 - Draw an arrow (or more if needed) to show the

transfer of electrons and move the cereal to the new location.

4 - Determine the charge for each ion and write the formula.

5 - Make sure the sum of the oxidation numbers is zero

and write the chemical formula.

6 - Have the students use a pencil or crayon to draw the

electrons as they remove the pieces of cereal.

How to draw a covenant bond

1. Add up all the valance electrons of the atoms involved.

2. You need to pick the central atom. This is usually easy, this atom will be surrounded by the others. Never H.

3. Now we create our skeleton structure by placing bonds in. A bond is a dash that represents 2 electrons.

4. Starting with the outer atoms add the remaining electrons in pairs until all the electrons have run out.

Definition and examples of metallic bonds

Metallic bond. Metallic bonding is the electrostatic attraction between the positively charged atomic nuclei of metal atoms and the delocalised electrons in the metal.

Any metallic element has metallic bonds:
Copper, zinc, sodium, lithium, francium, iron, cobalt, calcium, magnesium, silver, gold, barium, platinum, chromium are a few.