Beryllium
| Use attributes for filter ! | |
| Symbol | Be |
|---|---|
| Atomic number | 4 |
| Electron configuration | [He] 2s2 |
| Atomic mass | 9. 012182 u |
| Van der Waals radius | 153 pm |
| Did you know | Optical-grade beryllium was selected as the primary mirror material for NASA's James Webb Space Telescope, scheduled to replace the Hubble Telescope in 2018. |
| Date of Reg. | |
| Date of Upd. | |
| ID | 596577 |
About Beryllium
Beryllium is a chemical element with symbol Be and atomic number 4. It is a relatively rare element in the universe, usually occurring as a product of the spallation of larger atomic nuclei that have collided with cosmic rays. Within the cores of stars beryllium is depleted as it is fused and creates larger elements.
