Beryllium is a highly toxic metal so it is not of great practical value and is not researched a great deal. But since it has a low molecular weight it is useful as a window in x-ray spectrometers because it doesn't absorb the X-rays used ...See moreBeryllium is a highly toxic metal so it is not of great practical value and is not researched a great deal. But since it has a low molecular weight it is useful as a window in x-ray spectrometers because it doesn't absorb the X-rays used to detect the heavier elements. Written by
David Foss
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