أرشيف الوسم : extrudable

Alkaline-earth metals

Usually calcium, strontium, and barium, the heav­iest members of group 2 of the periodic table (excepting radium). Other members of the group are beryllium, magnesium, and radium, sometimes included among the alkaline-earth metals. Beryllium resembles aluminum more than any other element, and magnesium behaves more like zinc and cadmium. The gap between beryllium and magnesium and the remainder of the …

أكمل القراءة »