The melting and boiling points of molecular compounds are generally quite low compared to those of ionic compounds. This is because the energy required to disrupt the intermolecular forces between molecules is far less than the energy required to break the ionic bonds in a crystalline ionic compound
Ionic compounds have a higher melting point.
Ionic compounds have a higher melting point.
Very much higher.
The melting points of molecular solids are lower compared to ionic compounds. This is because molecular solids are held together by weaker intermolecular forces, such as van der Waals forces, which are easier to overcome than the strong electrostatic forces present in ionic compounds.
Ionic substances have higher melting points.
Ionic compounds tend to have higher melting and boiling points compared to molecular compounds. This is because ionic bonds are generally stronger than the intermolecular forces present in molecular compounds, such as van der Waals forces. The strong electrostatic forces between ions in an ionic compound require more energy to overcome, leading to higher melting and boiling points.
Ionic solids generally have higher melting points compared to molecular solids. This is because in ionic solids, strong electrostatic forces hold the ions together in a rigid lattice structure, requiring more energy to break these bonds and melt the substance. Molecular solids, on the other hand, are held together by weaker intermolecular forces, resulting in lower melting points.
Molecular compounds tend to have lower melting points compared to ionic compounds. This is because molecular compounds are held together by weaker intermolecular forces, such as van der Waals forces or hydrogen bonds, whereas ionic compounds are held together by strong electrostatic forces between ions. The higher the melting point, the stronger the bonds in the compound.
Simple molecular substances typically have low melting and boiling points. This is because the weak intermolecular forces, such as London dispersion forces, in simple molecular substances are easily overcome compared to the stronger bonds in ionic or metallic substances.
Network solids have a three-dimensional structure with strong covalent bonds throughout, leading to a higher melting point compared to molecular solids which have weaker intermolecular forces. In network solids, a larger amount of energy is required to break the extensive network of covalent bonds, resulting in a higher melting point.
Different melting points are caused by variations in molecular structures and intermolecular forces between substances. Substances with strong intermolecular forces will have higher melting points, while substances with weaker forces will have lower melting points. Additionally, factors such as molecular weight, shape, and polarity also contribute to the melting point of a substance.
have lower melting and boiling points, exist as discrete molecules, and do not conduct electricity in the solid state.