http://en.wikipedia.org/wiki/Neon
Neon, Ne, with the smallest difference (2 K) between melting point (25 K) and boiling point (27 K)
Neon or Ne on the periodic chart has an atomic number of 10. The link provided will list it's other chemical and physical properties.
Neon dose not have any Physical properties because its a gas
No, physical property is NOT a physical property itself