beryllium imetal riripaatomic number 4 rineatomic mass 9 nechemical formula ye(Be). Beryllium imetal ririsilver gray ende riripanumber 4.Beryllium rinonetsa kuwanda muuniverse yese .rinonyanyo wanikwa kumastars kanacomets.Muearth rinowanikwa kubva kudombo rinonzi bery. Beryllium rakasanganiswa necopper harispark ndosaka richishandiswa mumarockets.Beryllium haritorwa nemagnet Because of its low atomic number and very low absorption for X-rays, the oldest and still one of the most important applications of beryllium is in radiation windows for X-ray tubes.[27] Extreme demands are placed on purity and cleanliness of beryllium to avoid artifacts in the X-ray images. Thin beryllium foils are used as radiation windows for X-ray detectors, and the extremely low absorption minimizes the heating effects caused by high intensity, low energy X-rays typical of synchrotron radiation. Vacuum-tight windows and beam-tubes for radiation experiments on synchrotrons are manufactured exclusively from beryllium. In scientific setups for various X-ray emission studies (e.g., energy-dispersive X-ray spectroscopy) the sample holder is usually made of beryllium because its emitted X-rays have much lower energies (~100 eV) than X-rays from most studied materials.[7] Low atomic number also makes beryllium relatively transparent to energetic particles.