ALL meanings of alkaline earth metal
al·ka·line earth met·al
A a - noun alkaline earth metal any of the divalent electropositive metals beryllium, magnesium, calcium, strontium, barium, and radium, belonging to group 2A of the periodic table 3
- noun alkaline earth metal any of the six highly reactive chemical elements in group IIA of the periodic table including, in order of increasing reactivity, beryllium, magnesium, calcium, strontium, barium, and radium: an oxide of any of these metals is called an alkaline earth 3