KS3 Writing chemical formulae worksheet

A worksheet on writing chemical formulae, with answers.
Two versions are included, PowerPoint and Word.
In this worksheet, students will develop the skills of:

• Using a particle diagram to identify which elements are in a compound, and the relative numbers of atoms of each element in the compound
• Using particle diagrams and/or written information to write the chemical formulae for compounds
• Naming familiar two-element compounds
• Drawing particle diagrams for compounds

This worksheet is scaffolded with some gaps filled in to model how to correctly complete the table.
This is based on the KS3 Activate curriculum, from Chapter 2 “Elements, atoms and compounds” from Activate 1. However, this should be suitable for any KS3 class or lower ability KS4 class studying chemical formulae.