yes
Radon is a non-metal, an element. It belongs to group 18 and period 6 on the periodic table.
Radium is an alkaline earth metal.
No, radium is an alkaline earth metal .
Radium is a non metal radiop active element. Atomic mass of it is 12.
metal
Radium is a non-magnetic metal.
Radium is a solid alkaline earth metal.
To avoid the oxydation of radium (as a metal).
Metal
No.
Yes. Radium is actually considered an alkaline earth metal. Its colour is nearly pure white, but when exposed to air, it turns black. Radium is also extremely radioactive. A link is provided to the Wikipedia article on radium.
The heaviest alkaline-earth metal is radium. Radium is a highly radioactive element and is the heaviest and most unstable of the alkaline-earth metals.