Neptunium is a solid metal at room temperature, but undergoes beta decay becoming plutonium within a few days.
Neptunium is a metal element. It is a solid in room temperature. It is in the f block of the Periodic Table.
it is gas at room tempreature.
solid
Solid
Gaseous
Solid.
Solid
It is a solid at room temperature.
Helium is a gas at room temperature.
Boron is a solid at room temperature.
solid
solid ^^