Boron was discovered in 1808. French chemists Joseph-Louis Gay-Lussac and Louis-Jaques Thénard and English chemist Sir Humphry Davy independently isolated the element, and all three are credited with its discovery.Know More
Boron was discovered by combining potassium and boric acid. Its name comes from the Persian word "Burah" and the Arabic word "Buraq," both of which mean 'borax." When heated, boron gives off a green color, making it a desirable element for pyrotechnics. The compound borax is a common ingredient in laundry detergents and antiseptics.
Boron has an atomic number of five, atomic weight of 10.811 and atomic symbol of B. In its standard state, it is a solid that is classified as a semi-metal.Learn more about Chemistry
First prepared in 1824, boron sulfide is a polymer-like compound with the molecular formula B2S3. It is mildly soluble in water and some acids. It is a colorless, crystalline compound that decomposes at very high temperatures.Full Answer >
Pure boron does not occur naturally on Earth but can be found in some volcanic spring waters in the form of orthoboric acid. It is also present in borates found in mines in Turkey, Chile and Russia.Full Answer >
According to Chemicool, the element astatine was first produced by Dale R. Coson, Kenneth Ross Mackenzie and Emilio Segrè in 1940. Berta Karlik and Traude Bernert found astatine in nature three years later, according to Chemicool.Full Answer >
It is difficult to determine the exact location of the discovery of silver because it has been used since ancient times. Although the origins of silver are unclear, Archaeological finds do show that it has been used by people to craft decorative items, silverware and jewelry for around 5,000 years.Full Answer >