why does beryllium does not reacts with hydrogen?

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Solution

Beryllium doesnot react directly with hydrogen unlike other alkaline earth metals to form ionic hydride.This is because the oxidation potential of Beryllium is very low and thus it doesnot donate its electrons easily to hydrogen.

Beryllium hydride (BeH₂) is obtained by decomposition of Beryllium alkyl compounds and has a three dimensional covalent polymeric structure.

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