Describe the role of halogens in materials characterization. What are the applications of halogens in the development of new sensors for detecting specific molecules or environmental contaminants

... halogens according to their position in the periodic table belong to Group VIIA, which means they have seven valence electrons and need an additional ... Name: Fluorine Symbol: F Atomic Weight: 18.998403 Atomic Number: 9 Element Classification: Halogens Discovered By: Henri Moissan Discovery Date: 1886 (France) The halogens are five non-metallic elements found in group 17 of the periodic table. The term "halogen" means "salt-former" and compounds containing halogens ... Halogens are a group of elements found in Group 17 of the periodic table. They include: Fluorine (F); Chlorine (Cl); Bromine (Br); Iodine (I); Astatine (At) ... There are ten chemical families: the alkali metals, alkali earth metals, transition metals, post-transition metals, metalloids, reactive nonmetals, halogens, ... Halogens are the group 7A elements in the periodic table. They are highly reactive nonmetals and exist as diatomic molecules. Understanding Chemistry. PERIODIC TABLE GROUP 7 (HALOGENS) MENU. Note: If you use the current IUPAC (international Union of Pure and Applied Chemistry) ... Jun 8, 2020 ... 2. Where are the alkali metals and the halogens located on the periodic table? 3. On the following list of elements, circle the symbols of the ... Halogens are a group of elements on the periodic table found in group 17. They are non-metals, and the term "halogen" means "salt-former" Page 1. 1. H. Hydrogen. 1.008. 11. Na. Sodium. 22.989. 19. K. Potassium. 39.098. 37. Rb. Rubidium. 85.468. 55. Cs. Cesium. 132.905. 87. Fr. Francium.