Which one of the following alkaline earth met | vedclass

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(A) Among the alkaline earth metals,$Be$ (Beryllium) is the only element that does not react directly with hydrogen to form its hydride $(BeH_2)$.This

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$Be$

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(A) Among the alkaline earth metals,$Be$ (Beryllium) is the only element that does not react directly with hydrogen to form its hydride $(BeH_2)$.This is due to the high ionization energy and small size of the $Be^{2+}$ ion,which makes the formation of the ionic hydride energetically unfavorable.Other alkaline earth metals like $Mg$,$Ca$,$Sr$,and $Ba$ react directly with hydrogen upon heating to form their respective ionic hydrides $(MH_2)$.

Which one of the following alkaline earth metals does not form hydride when it is heated with hydrogen directly?

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