Promethium is a solid metal.
Promethium is a solid.
Promethium is a solid metal.
Gaseous phase
noble gas
Although promethium exist in traces in the Earth crust it is an artificial element.
Promethium is a solid.
Promethium is a transition element.
The normal phase for the element Mercury is Liquid.
Promethium is not flammable.
Promethium is a solid metal.
Promethium can be melted and boiled.
what is the normal phase of the elment Argon The normal phase of the element Argon is a gas.
the normal phase of the Element Xe is gas
Promethium is a rare artificial element.
Promethium is a rare artificial element.
Promethium is a chemical element, a metal.
Promethium is a rare artificial element.