Question

define alkaline earth element...​

Answer 1

The alkaline earth metals are six chemical elements in group 2 of the periodic table. They are beryllium, magnesium, calcium, strontium, barium, and radium. The elements have very similar properties: they are all shiny, silvery-white, somewhat reactive metals at standard temperature and pressure

OR

any of the divalent strongly basic metals of group II of the periodic table comprising beryllium, magnesium, calcium, strontium, barium, and radium. — called also alkaline earth.

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Answer 2

Answer:

The elements which are whose oxides are soluble base . They are 6 elements. They belong to Group A of period Table . They are very reactive, low boiling and melting point.