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alkaline earth metal |
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alkaline earth metalAny of the six chemical elements in the second leftmost group of the periodic table (beryllium, magnesium, calcium, strontium, barium, and radium). Their name harks back to medieval alchemy. Their atoms have two electrons in the outermost shell, so they react readily, form numerous compounds, and are never found free in nature. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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| This may reflect the concentration
of alkaline earth metals (Ca, Sr) in soil and groundwater as is typical
in dry climates. But he argues that placing
helium with the alkaline earth metals results in a more regularly shaped
structure that can take two forms. |
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