WebAug 15, 2024 · Chlorine is a halogen in group 17 and period 3. It is very reactive and is widely used for many purposes, such as as a disinfectant. Due to its high reactivity, it is … WebGroup 7 is on the right-hand side of the periodic table, next to group 0. The halogens show trends in their physical and chemical properties.. Physical properties. The halogens exist as simple ...
Calcium Chloride (CaCl2) - Structure, Properties, and Uses - BYJU
WebAug 13, 2024 · Osmolarity of a solution is the number of osmoles of solute per litre of solution. Osmolality is a measure of the number of particles present in solution and is independent of the size or weight of the particles. It can be measured only by use of a property of the solution that is dependent solely on the particle concentration. Webhalogen, any of the six nonmetallic elements that constitute Group 17 (Group VIIa) of the periodic table. The halogen elements are fluorine (F), chlorine (Cl), bromine (Br), iodine (I), astatine (At), and tennessine (Ts). … how to stand for a long time
Halogen displacement reactions - Group 7 - BBC Bitesize
Chlorine is a chemical element with the symbol Cl and atomic number 17. The second-lightest of the halogens, it appears between fluorine and bromine in the periodic table and its properties are mostly intermediate between them. Chlorine is a yellow-green gas at room temperature. It is an extremely reactive element and a strong oxidising agent: among the elements, it has the highest electron a… WebAppearance. The description of the element in its natural form. Biological role. The role of the element in humans, animals and plants. ... The early chemists were aware that metal fluorides contained an unidentified element similar to chlorine, but they could not isolate it. (The French scientist, André Ampère coined the name fluorine in ... WebChlorine is a greenish-yellow gas. It has a pungent odour. It has a boiling point of 239.11K and a melting point of 171.6K. The gas is harmful to nature. It is 2-5 times denser than air. It can be effectively condensed. … how to stand for a good photo