"an is an ionic"
Matter with a definite composition is a pure substance, such as an element, molecule, molecular compound, or ionic compound.
An ionic compound always exists in solid state.
NaF is a solid ionic compound.
An ionic compound is a pure substance that is formed from a metal and a nonmetal. It has a fairly high melting point and is a conductor of electricity when in a molten or aqueous state . A molecular compound, on the other hand, is a pure substance that is formed from nonmetals. It has a fairly low melting point, and cannot conduct electricity regardless of state. Another important difference between the two is that an ionic compound is a crystalline solid at standard ambient temperature and pressure (SATP), whereas a molecular compound can be in a solid, gas or liquid state at SATP.
yes, it is an ionic compound and all ionic compounds exist in solid state.
"Better" depends on the context. For some purposes solid may be better, for others, melted will be better.
An Ionic compound is any compound in which some of the atoms gain or lose electrons to form Ions, and it has no specific state (solid, liquid, gas). So, the short answer is no, not necessarily.
It is an ionic crystalline solid
when it solid
ionic substance
Magnesium oxide is an example of an ionic, solid compound.
Ionic compounds are conductors in solution or melted.