Ionic Compounds Facts
Ionic Compound can be defined as a compound made of ions and particles have strong ionic bonds. These compounds are hard and brittle because the positive and negative ions are strongly attracted to each other and difficult to separate. They form crystals rather than amorphous solids. Solid ionic compounds are also good insulators because of the strong ionic bond. But these compounds conduct electricity if dissolved in water. The common white crystalline table salt or sodium chloride (NaCl) is a good example of ionic compounds. It contains positive sodium ions and negative chloride ions.
Fast Facts: –
- The ionic bonds balance the attraction force between positive and negative ions and the repulsion force between similar negative charges in the electron clouds.
- These bonds are formed when a metal reacts with a non-metal. Positive ions are formed by metals and negative ions are formed by non-metals.
- These compounds remain in the solid state at room temperature and they have high solubility in water.
- When an atom gets or loses an electron then we get an ion.
- Atoms with a net negative charge are known as Anion and atoms with a net positive charge are known as Cations.
- Ionic compounds have high boiling and melting points because it is quite difficult to break ionic bonds.
- These compounds can be produced from their constituent ions by evaporating, precipitation or freezing.
- The reaction between metals and non-metals are known as an ionic reaction as they produce ionic compounds.
- Sodium chloride does not conduct electricity in the solid state. It has a high melting point which is 800°C.
- Halite is the mineral form of sodium chloride. It forms when salty water evaporates and leaves the ions behind.