Question

What are the two largest differences between ionic and covalent bonds?

Answer 1

covalent bonds share electrons and form a bond. ionic bond uses attraction of positive and negative forces to form a bond(one gains electrons and one loses them)

Answer 2

- Ionic bonds occur between atoms having very different electronegativities, whereas, covalent bonds occur between atoms with similar or very low electronegativity differences.

- Ionic bonds occur between metals and non metals. Covalent bonding most commonly occurs between two nonmetals.

- In ionic bonding, a complete transfer of electrons occurs, whereas covalent bonding occurs when two (or more) elements share electrons.

- Ionic substances are usually seen as crystals. In crystals, a negatively charged ion is surrounded by few positively charged ions and vice versa.

- Unlike the ionic compounds, the atoms bounded by covalent bonds exist as molecules. At room temperature, they are mainly seen as gases or liquids.

- Since ionic compounds are in crystalline form, they have very high melting points and boiling points compared to covalent molecules.

- Ionic bonds have a high polarity and covalent bonds have a low polarity.

- In polar solvents (water), ionic compounds are solvated releasing ions as opposed to molecules with covalent bonding. Such solutions are capable of conducting electricity.