Beryllium is the hardest element in group II, at 5.5 on the Mohs scale. The hardnesses decrease as you go down the group, until barium has a hardness of 1.25.
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 not an alkaline earth metal it is a noble gas
It is an alkaline earth element
It is not an alkaline earth metal it is a noble gas
Calcium is considered an alkaline earth metal.
MH2, M= alkaline earth metal.
It is not a alkaline metal.It is a alkaline earth metal.
Beryllium is an alkaline earth metal.
Group 2 (alkaline earth metals): lithium, sodium, potassium, caesium, rubidium, francium.
Calcium is not a non-metal, it is an alkaline earth metal.
Beryllium is the most electronegative alkaline earth metal.