Nah, for covalent the state is going to be determined by the strength of Van der Waals forces. For ionic compounds the mp and bp will relate to the electronegativity...distance and shielding making it weaker. For metals it must be the charge of the cation. Technically, if you had one atom, it has none of these intermolecular, covalent or ionic forces at play, so you could call it a gas, at an incredibly low concentration.
beansahol t1_jd516nl wrote
Reply to Can a single atom be determined to be in any particular phase of matter? by Zalack
Nah, for covalent the state is going to be determined by the strength of Van der Waals forces. For ionic compounds the mp and bp will relate to the electronegativity...distance and shielding making it weaker. For metals it must be the charge of the cation. Technically, if you had one atom, it has none of these intermolecular, covalent or ionic forces at play, so you could call it a gas, at an incredibly low concentration.