Ionic Ionic compounds do not exist as gases at 25°C and 1 atm, because cations and anions in an ionic solid are held together by very strong electrostatic forces; that is, forces between positive and negative charges. To overcome these attractions we must apply a large amount of energy, which in practice means strongly heating the solid. This is the reason for the question.
Covalent.. A+
A+...metallics.
Noble gases exist in the nature as gases; only a small number of (all man made) compounds of noble gases are known.
They are noble gases whose electron shells are full. They cannot, therefore, form ions.
Yes they do.
All elements and all compounds do not exist as molecules. As examples, noble gases exist as individulal atoms and ionic compounds form lattices.
All elements and compounds can exist as a gas if heated sufficiently.
Ionic compounds conduct electricity as liquids and in solution.
All inert gases exist as gases in nature; but today the name inert remain only traditional. The so-called noble gases has known compounds (excepting neon).
Mainly because they do not readily form compounds.
Any chemical has that capacity, if you create the necessary conditions of temperature and pressure. All elements and all compounds can exist as solids, liquids, or gases.
Noble gases do not normally form compounds.