"Better" depends on the context. For some purposes solid may be better, for others, melted will be better.
Ionic compounds are conductors in solution or melted.
In a melted ionic compound, the ions are free to move and carry electric charge, allowing the compound to conduct electricity. In a solid ionic compound, the ions are fixed in position and cannot move freely, so they are unable to carry electric charge and conduct electricity effectively.
Upon melting, the ions are free to move and conduct electricity.
A melting ionic compound allows ions to move freely within the liquid, increasing conductivity. In contrast, in a solid ionic compound, ions are fixed in a lattice structure and cannot move as easily, reducing conductivity.
When an ionic compound is melted, the strong electrostatic forces between the ions are overcome, allowing the solid to transition into a liquid state. In this molten state, the ions are free to move around and conduct electricity, making the melted compound a good conductor of electricity.
An ionic compound. Ionic compounds do not conduct electricity in their solid state because the ions are locked in place and cannot move to carry a charge. However, when melted, these ions are free to move and conduct electricity.
when solid is converted to liquid by heat is called molten while solid state is called fuse state
The ionic solid needs to be melted or dissolved in a liquid to allow the ions to move freely. This breaks the rigid crystal lattice structure of the solid, allowing the ions to move around. Heating the solid to high temperatures can also provide the energy needed for the ions to move.
"an is an ionic"
When dissolved or melted you would call them ionic. However you cannot then be absolutely certain that the solid is a straight forward ionic solid!
The ionic compound must be melted or dissolved in a liquid to allow the ions to move freely and conduct electricity. In the solid state, the ions are fixed in place and cannot carry an electric current.
They are conductive in solution or melted.