8.8.4 Structure of colloidal particle and electrokinetic potential (n-xK- x K Colloidal core Surface charge Compact layer Diffusion layer Colloidal particle Colloid[(AgI)m · n I – · (n-x)K+ ] x− x K+ Colloidal core Surface charge Compact layer Diffusion layer Colloidal particle Colloid (AgI)m I - I - I - 8.8.4 Structure of colloidal particle and electrokinetic potential