I have got these in the wrong order by the terms of the question... A
I find that a better determinant to assess physical states of matter, i.e. gases, solids, liquids, is the MOLECULARITY of the substance. Molecular substances, i.e. gases, water, carbon dioxide, TEND to be volatile, and have accessible melting and boiling points... Non-molecular substances, metals, quartz, ionic salts, diamond, TEND to have HIGH melting and boiling points...