Draw or interpret simple molecular shapes and bond angles.

In the subtopic Covalent bonding and molecular shape, this AQA A-Level Chemistry 7405 learning objective focuses on draw or interpret simple molecular shapes and bond angles. It belongs to Bonding, so revision should stay anchored to this exact subtopic rather than drifting into a generic GCSE-level chemistry summary. Approved keywords to use include molecular shape, bond angle. Molecular shape. means the three-dimensional arrangement of atoms within a molecule, determined by the bonding and lone pairs of electrons Avoid the mistake of students often confuse the bond angles in simple molecular shapes, thinking they are all the same regardless of the presence of lone pairs; instead, to fix this, students should remember that lone pairs repel more than bonding pairs, which can alter the bond angles in a molecule. For example, in water (H₂O), the bond angle is approximately 104.5° due to the two lone pairs on the oxygen atom For exam answers, practice drawing and interpreting the shapes of simple molecules and their bond angles using electron-pair repulsion theory