Edexcel IAL Chemistry AS 1.1 Atomic and formula terminology
Edexcel IAL Chemistry AS 1.1 Atomic and formula terminology
Use bonding and particle type to classify the substance, count each atom from the representation and reduce ratios or balance ionic charges as required.
How this is tested
- Distinguish atoms, ions, molecules, compounds and giant structures from formulae.
- Determine molecular or empirical formulae by counting atoms and balancing ionic charges.