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Why does Beryllium have a tough oxide layer?

I have read that beryllium does not react with water, because it has a tough oxide layer which protects it from reacting with air. But why does it actually have this layer? why is it that this metal has it but not any other metal has got this layer?
Could someone please explain this to me. I appreaciate all help.
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joostan
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Original post by lorobolorolo
I have read that beryllium does not react with water, because it has a tough oxide layer which protects it from reacting with air. But why does it actually have this layer? why is it that this metal has it but not any other metal has got this layer?
Could someone please explain this to me. I appreaciate all help.


Aluminium has a protective layer of aluminium oxide around it. It's also common to sacrifice a reactive metal so that it forms an oxide layer around the desired metal http://www.gcsescience.com/ex34.htm

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