- High melting and boiling points due to strong bonds
- Ability to conduct electricity when dissolved or melted
- Formation of crystalline solids with regular lattice shapes
- Solubility in water for many salts
- Brittleness under mechanical stress
- Lower melting and boiling points compared to similar ionic samples
- Poor electrical conductivity in pure state
- Existence as gases, liquids, or low-melting solids
- Solubility in organic solvents rather than water
- Molecular geometry that can affect polarity
- Step 1: Locate the elements involved and note their positions on the periodic table.
- Step 2: Compare their electronegativities to determine the likely bond type.
- Step 3: Use visual cues in the PDF: ionic compounds often show repeating lattices; covalent ones appear as distinct molecules.
| Property | Ionic Compounds | Covalent Compounds |
|---|---|---|
| Bonding Nature | Electron Transfer | Electron Sharing |
| Melting/Boiling Points | High | Low to moderate |
| Electrical Conductivity | Conducts when molten or dissolved | Does not conduct |
| Appearance in Solid State | Crystalline solids | Discrete molecules |
| Solubility in Water | Often soluble | Variable; depends on polarity |
- Use bookmarks or tabs to separate theory sections from practice problems.
- Highlight definitions in bold so they stand out during review sessions.
- Copy tables into your own notes for easy comparison later.
- Search within the PDF for keywords like “bond length” or “lattice energy” to locate quick summaries.