![]() ![]() This atomic number is also the number of protons in the atom. For example, the element cobalt (Co) has an atomic number of 27. This atomic number is equal to the number of protons in the nucleus of that particular atom. Each element's symbol is composed of a capital letter followed by one or two lowercase letters.Ītomic Number- Each atom has an atomic number. For example, silicon has a chemical symbol "Si". This symbol usually originates from its name or its Latin name. Symbol- Each element is assigned a chemical symbol. Iodine is extracted from natural brines and oil brines, which have up to 100 ppm of the element.Below is a quick explanation of all the items on the fact sheets It is extensively used in the pharmaceutical industry, as a raw material for x-ray contrast media and antiseptics, as well as a catalyst or reagent in the synthesis of several active pharmaceutical ingredients such as antibiotics, corticosteroids and cardiovascular drugs.Ībout 400 tones of iodine escape from the oceans every year as iodide in sea spray or as iodide, hydrochloric acid and methyl iodide, produced by marine organisms. ![]() Iodine is important in human nutrition, as the body needs to have a certain quantity of iodine to avoid goiter disease, thyroid malfunctioning and potential mental retardation and abnormal growth in developing fetuses. Iodine based biocides are used in industrial applications such as paints, adhesives, wood treatment and metalworking fluids. Iodine is present naturally in soil and seawater. ![]() Iodine is important for the production of thyroid hormones. Iodine is found in range of foods, the richest sources being fish and dairy products. Iodine is a mineral that is important nutrient for the body. Boron fibers are high-strength, lightweight materials that are used chiefly for advanced aerospace structures as a component of composite materials, as well as limited production consumer and sporting goods such as golf clubs and fishing rods. Boron is similar to carbon in its capability to form stable covalently bonded molecular networks. Boron compounds are also used as fertilizers in agriculture, and in sodium perborate bleaches.īoron is an important dopant for semiconductors, and boron-containing reagents are used as intermediates in the synthesis of organic fine chemicals. It has several forms, the most common of which is amorphous boron, a dark powder, unreactive to oxygen, water, acids and alkalis. Boron is electron-deficient, possessing a vacant p-orbital. Gay-Lussac's law explains the pressure of a fixed amount of gas at fixed volume is directly proportional to its temperature in kelvinsīoron is a semimetal of main Group 13 of the periodic table, essential to plant growth and of wide industrial application. Lussac worked on alcohol-water mixtures, which led to the degrees Gay-Lussac used to measure alcoholic beverages in many countries. He showed that different gases are dilated in the same proportion when heated from 0° to 100☌. Lussac was the first person to Coin the terms pipette and burette. He developed an improved version of the burette. Lussac recognized iodine as a new element. In collaboration with Louis Thenard, he developed a method for quantitative elemental analysis. Lussac analyzed the composition of Earth's atmosphere at different altitudes. Lussac was a French chemist and physicist and he was best known for his formulation of Gay-Lussac Law. Louis-Joseph Gay Lussac was born on Decem– died on May 09, 1850.
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