Beryllium is a chemical element; it has symbol Be and atomic number 4. It is a steel-gray, hard, strong, lightweight and brittle alkaline earth metal . It is a divalent element that occurs naturally only in combination with other elements to form minerals.
2024年11月22日 · Beryllium, chemical element that is the lightest member of the alkaline-earth metals of Group 2 of the periodic table. It is used in metallurgy as a hardening agent and in many outer space and nuclear applications.
Element Beryllium (Be), Group 2, Atomic Number 4, s-block, Mass 9.012. Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images.
Beryllium is the 4th element in the periodic table and has a symbol of Be and atomic number of 4. It has an atomic weight of 9.01218 and a mass number of 9. Beryllium has four protons and five neutrons in its nucleus, and four electrons in two shells.
Beryllium is a chemical element with symbol Be and atomic number 4. Classified as a n alkaline earth metal, Beryllium is a solid at room temperature. J.C. Slater, J Chem Phys, 1964, 41 (10), 3199-3205. DOI:10.1063/1.1725697.