1. Sodium Chloride (NaCl)

- Composed of positively charged sodium ions (Na+) and negatively charged chloride ions (Cl-).

2. Potassium Fluoride (KF)

- Consists of positively charged potassium ions (K+) and negatively charged fluoride ions (F-).

3. Calcium Oxide (CaO)

- Contains positively charged calcium ions (Ca2+) and negatively charged oxide ions (O2-).