Calcium oxide (CaO) primarily exhibits ionic bonding due to the electrostatic attraction between calcium ions (Ca²⁺) and oxide ions (O²⁻). In solid form, these ionic bonds create a strong lattice structure, which is characteristic of ionic compounds. While intermolecular forces are generally discussed in the context of molecular substances, CaO's dominant interactions are ionic rather than intermolecular. Therefore, it does not have conventional intermolecular forces like hydrogen bonding or Van der Waals forces.
Boiling point is a property not a force; but a high boiling point indicate a strong intermolecular force.
Intermolecular attraction
The intermolecular force in Ar (argon) is London dispersion forces, which are the weakest type of intermolecular force. This force is caused by temporary fluctuations in electron distribution around the atom, leading to temporary dipoles.
The physical state of matter with the least intermolecular force is a gas, where particles are far apart and move freely. Conversely, the state with the greatest intermolecular force is a solid, where particles are closely packed in a fixed arrangement. Liquids fall in between, with moderate intermolecular forces allowing for both some degree of particle movement and a defined shape.
Metallic bonding
intermolecular force
This is an intermolecular force.
CaO (calcium oxide) has a higher melting point than CS2 (carbon disulfide). This is because CaO is an ionic compound with strong electrostatic forces between ions, while CS2 is a covalent compound with weaker intermolecular forces.
Boiling point is a property not a force; but a high boiling point indicate a strong intermolecular force.
Gravity!
Intermolecular attraction
The intermolecular force in Ar (argon) is London dispersion forces, which are the weakest type of intermolecular force. This force is caused by temporary fluctuations in electron distribution around the atom, leading to temporary dipoles.
Intramolecular forces are not intermolecular forces !
The intermolecular force in BF3 is London dispersion forces. This is because BF3 is a nonpolar molecule, so the only intermolecular force it experiences is the temporary weak attraction between temporary dipoles.
CaO has a higher melting point than CS2. CaO (calcium oxide) is an ionic compound with strong electrostatic forces between its ions, resulting in a higher melting point. CS2 (carbon disulfide) is a covalent compound with weaker intermolecular forces, leading to a lower melting point.
The physical state of matter with the least intermolecular force is a gas, where particles are far apart and move freely. Conversely, the state with the greatest intermolecular force is a solid, where particles are closely packed in a fixed arrangement. Liquids fall in between, with moderate intermolecular forces allowing for both some degree of particle movement and a defined shape.
Intermolecular forces shown by the dotted lines not by strong covalent bonds.