Beryllium - Wikipedia
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. Gemstones high in beryllium include beryl (aquamarine, emerald, red beryl) and chrysoberyl.
Beryllium - Element information, properties and uses | Periodic …
Element Beryllium (Be), Group 2, Atomic Number 4, s-block, Mass 9.012. Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images.
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Beryllium | Properties, Uses, & Facts | Britannica
2024年10月11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.
WebElements Periodic Table » Beryllium » the essentials
Beryllium is a Group 2 (IIA) element. It is a metal and has a high melting point. At ordinary temperatures, beryllium resists oxidation in air. Beryllium compounds are very toxic. Its ability to scratch glass is probably due to the formation of a thin layer of the oxide.
Alkaline-earth metal | Properties, List, & Reactivity | Britannica
2024年10月30日 · Alkaline-earth metal, any of the six chemical elements that comprise Group 2 of the periodic table. The elements are beryllium (Be), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba), and radium (Ra). The alkaline-earth elements are highly metallic and are good conductors of electricity.
Group 2: General Properties - Chemistry LibreTexts
2023年6月30日 · Beryllium is the very first element in Group 2, and has the highest melting point (1560 K) of any element in the group. It is very rare on Earth as well as in the universe and is not considered important for plant or animal life.
Beryllium - Periodic Table and Atomic Properties
Summary. 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 …
Beryllium (Be) -Atomic number, Atomic Weight, Chemical …
Beryllium (Be) - Beryllium with atomic number 4 is a highly toxic bivalent element in the periodic table. The atomic mass of Beryllium is 9.012 g/mol. To learn Chemical Properties, Uses and FAQs of Beryllium, Visit BYJU’S for more content.
It's Elemental - The Element Beryllium - Thomas Jefferson …
Group Name: Alkaline Earth Metal. What's in a name? From the Greek word beryl, a type of mineral. Say what? Beryllium is pronounced as beh-RIL-ee-em. History and Uses: Although emeralds and beryl were known to ancient civilizations, they were first recognized as the same mineral (Be 3 Al 2 (SiO 3) 6) by Abbé Haüy in 1798.