Bonding

The topics covered in this Starter for ten activity are: covalent dot and cross; ionic dot and cross; which typr of chemical bond; co-ordinate bonding; electronegativity and polarity; intermolecular forces; shapes of molecules; and properties of bonding.

Example questions

Draw dot and cross diagrams to illustrate the bonding in the following covalent compounds. If you wish you need only draw the outer shell electrons;

(2 marks for each correct diagram)

1. Water, H₂O
2. Carbon dioxide, CO₂
3. Ethyne, C₂H₂
4. Phosphoryl chloride, POCl₃
5. Sulfuric acid, H₂SO₄

Draw dot and cross diagrams to illustrate the bonding in the following ionic compounds.

(2 marks for each correct diagram)

1. Lithium fluoride, LiF
2. Magnesium chloride, MgCl₂
3. Magnesium oxide, MgO
4. Lithium hydroxide, LiOH
5. Sodium cyanide, NaCN

There are three types of strong chemical bonds; ionic, covalent and metallic.

1. Sort the compounds below into groups within the circles below according to their chemical bonding;

Notes

A full version of this resource, including questions and answers, is available from the ‘Downloads’ section below. An editable version is also available.