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.

2025年1月31日 · beryllium (Be), chemical element, the lightest member of the alkaline-earth metals of Group 2 (IIa) of the periodic table, used in metallurgy as a hardening agent and in many outer space and nuclear applications.

Beryllium is a chemical element of the periodic table with chemical symbol Be and atomic number 4 with an atomic weight of 9.01218 u and is classed as alkaline earth metal and is part of group 2 (alkaline earth metal). Beryllium is solid at room temperature.

Beryllium is found in some 30 mineral species, the most important of which are bertrandite, beryl, chrysoberyl, and phenacite. Aquamarine and emerald are precious forms of beryl. Beryl and bertrandite are the most important commercial sources of the element and its compounds.

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.

2020年11月21日 · Atomic Number of Beryllium. Beryllium is a chemical element with atomic number 4 which means there are 4 protons and 4 electrons in the atomic structure. The chemical symbol for Beryllium is Be.

Atomic Number – Protons, Electrons and Neutrons in Beryllium. Beryllium is a chemical element with atomic number 4 which means there are 4 protons in its nucleus. Total number of protons in the nucleus is called the atomic number of the atom and is given the symbol Z.

Beryllium is an element with an atomic number of 4 in the periodic table. It is a bivalent and highly toxic element. The element has one of the highest melting points among the light metals.