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alkaline-earth metal
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alkaline-earth metal

Any of a group of six metallic elements with similar bonding properties: beryllium, magnesium, calcium, strontium, barium, and radium. They form a linked group in the periodic table of the elements. They are strongly basic, bivalent (have a valency of two), and occur in nature only in compounds. Calcium and magnesium are abundant on Earth and essential for all organisms, while the other three elements are relatively rare.



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? Mentioned in ? References in periodicals archive
 
Pennsylvania is planning to construct 10 bridges along Interstate 99 using concrete mixtures containing industrial byproducts such as fly ash, silica fume, ground granulated blast furnace slag and an alkaline earth mineral admixture.
The mystery element is an alkaline earth metal, or one of a group of elements that is highly reactive in nature.
This may reflect the concentration of alkaline earth metals (Ca, Sr) in soil and groundwater as is typical in dry climates.
 
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