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- Molecular formula: Be
- Molar mass: 9.012
- CAS Registry Number: Not available
- Appearance: Not available
- Melting point: Not available
- Boiling point: Not available
- Solubility: Not available
- Safety sheet: Not available
- Spectra: Check on SDBS. Add Spectra (Help).
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. It is a divalent element which occurs naturally only in combination with other elements in minerals. Notable gemstones which contain beryllium include beryl (aquamarine, emerald) and chrysoberyl. As a free element it is a steel-gray, strong, lightweight and brittle alkaline earth metal.
Beryllium (IUPAC Name); Elemental beryllium; Glucinium