Radium. Elements with an atomic number greater than 83 are always radioactive.
MH2, M= alkaline earth metal.
It is not a alkaline metal.It is a alkaline earth metal.
Beryllium is an alkaline earth metal.
why nitrogen form compound with alkaline earth metal
Alkaline earth metals are in the second group. Be is the first metal of them.
Radium is the radioactive metal among alkaline earth metals.
There are two radioactive alkaline earth metals: radium (Ra) and radium (Ra). Both elements have radioactive isotopes that undergo radioactive decay.
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.
Radium is an alkaline earth metal, radioactive, solid, reactive.
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.
I believe the answer is cobalt (Co).
Radium is an alkaline earth metal, group 2, period 7; Ra is a radioactive.
No, aluminum is not an alkaline earth metal. Aluminum is a post-transition metal, not an alkaline earth metal. Alkaline earth metals include elements like calcium, magnesium, and barium.
It is an alkaline earth metal.
It is an alkaline earth element
It is not an alkaline earth metal it is a noble gas
It is not an alkaline earth metal it is a noble gas