Question

How do ionic and molecular compounds compare in terms of physical properties?

Answer 1

Hint: The ionic compound and the molecular compound are the two types of compound formed by the electron transfer between the atoms. Ionic compounds are formed between a metal and a non-metal and the molecular compound is formed between two non-metal.

Complete step by step answer:
The ionic compounds are formed by the transfer of electrons between the two atoms and as a result charge distribution takes place, one atom gains positive charge and forms a cation and other atom gains negative charge and forms an anion. The chemical bond formed between the ions of the ionic compound is called an ionic bond. The ionic compound is formed between a metal atom and a nonmetal atom.
The covalent compounds are also called molecular compounds. The covalent compounds are formed by combination of two atoms where the atoms are bonded by the covalent bond. The covalent bonds are formed by the mutual sharing of electrons between the two atoms. The covalent compounds are formed between two nonmetals.
The ionic compound and the molecular compound differ in their physical properties.
The comparison between the ionic and molecular compounds in terms of physical properties is shown below.

Ionic compound	Molecular compound
Ionic compound exists in solid form only	At normal temperature molecular compounds exist in solid, liquid and gases.
Solid ionic compound does not conduct electricity but in aqueous state the ionic compound conduct electricity	The molecular compounds do not conduct electricity either in pure form or when dissolved in water.
Due to the strong electrostatic force of attraction ionic compounds have high melting and boiling point.	The melting and boiling point of molecular compound is low.
Ionic compounds are in crystalline form.	Molecular compounds are generally amorphous in nature.

Note: During the bond formation in the ionic compound and the molecular compound only valence electrons are transferred between the atoms. The valence electrons are present in the outer orbital of the chemical element.