2025年1月10日 · Boron, chemical element that is a semimetal essential to plant growth and of wide industrial application. Typical effects of long-term boron deficiency are stunted, misshapen growth; vegetable ‘brown heart’ and sugar beet ‘dry rot’ …

Boron is a chemical element. It has the symbol B and atomic number 5. In its crystalline form it is a brittle, dark, lustrous metalloid; in its amorphous form it is a brown powder.

2014年11月5日 · Boron is a multipurpose element. It's a crucial nutrient for plants, an important component in the nuclear industry and the main ingredient of a bizarre fluid called oobleck. Perched next to...

Element Boron (B), Group 13, Atomic Number 5, p-block, Mass 10.81. Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images.

2015年5月20日 · Boron is the fifth element of the periodic table. These boron facts contain chemical and physical data along with general information and history. Boron periodic table cell. Basic Boron Facts. Name: Boron. Atomic Number: 5. Element Symbol: B. Group: 13. Period: 2. Block: p. Element Family: metalloid. Atomic Mass: [10.806; 10.821] IUPAC guidelines.

Boron is a metalloid and was discovered by Joseph L. Gay-Lussac and L. J. Thénard in 1808. It is chemically unreactive and is the second hardest element on earth. Boron is an ancient metal …

2019年2月6日 · Did you know boron has the highest boiling point of the semimetals? Learn periodic table facts and the physical properties of the element boron.

Boron (pronunciation BO-ron [2]), represented by the chemical symbol or chemical formula B [1], is hard and brittle in its crystalline form [22]. It has allotropes in the form of an amorphous powder and three major crystalline forms [34]. Naturally occurring B has two stable isotopes with mass numbers 10 and 11 [1, 2].

Discover the fascinating world of Boron, Element 5 in the periodic table. Dive deep into its physical and chemical properties, industrial applications, and medical uses. Understand its history, abundance, and safety precautions. Learn how …

Boron is a chemical element with atomic number five and it is a trace element that is found in the earth’s crust and solar system. Boron is a metalloid. Sodium tetraborate decahydrate or borax is the most important compound of boron, which is used …