Chlorine is a chemical element; it has 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.

Element Chlorine (Cl), Group 17, Atomic Number 17, p-block, Mass 35.45. Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images.

2025年1月25日 · Chlorine, chemical element of the halogen group that is a toxic, corrosive, greenish yellow gas, irritating to the eyes and respiratory system. Much chlorine is used to sterilize water and wastes, and the substance is employed either directly or indirectly as a bleaching agent for paper.

It is a member of the halogen (salt-forming) group of elements and is obtained from chlorides by the action of oxidizing agents and more often by electrolysis; it is a greenish-yellow gas, combining directly with nearly all elements.

2019年11月7日 · Chlorine is a chemical element with atomic number 17 and element symbol Cl. It is a member of the halogen group of elements, appearing between fluorine and bromine moving down the periodic table. At ordinary temperature and pressure, chlorine is a …

2019年8月14日 · Chlorine is atomic number 17 with element symbol Cl. Chlorine belongs to the halogen element group. It is the second lightest halogen, after fluorine. Like other halogens, it's an extremely reactive element that readily forms the -1 anion. Because of its high reactivity, chlorine is found in compounds.

2022年7月20日 · Chlorine is the chemical element that constitutes about 0.017 percent of the earth’s crust. Chlorine is a toxic, corrosive gas that is greenish-yellow and irritating to the eyes and respiratory system. There are lots of use and benefits of chlorine which we will discuss later.

2025年1月25日 · Chlorine molecules are composed of two atoms (Cl 2). Chlorine combines with almost all the elements, except for the lighter noble gases, to give chlorides; those of most metals are ionic crystals, whereas those of the semimetals and nonmetals are predominantly molecular.

Chlorine (pronounced as KLOHR-een) is a highly reactive diatomic gas belonging to the family of halogens. Denoted by the chemical symbol Cl, it categorized as a nonmetal [1, 2]. It has 16 isotopes with mass numbers ranging from 31 to 46 of which only Cl-35 and Cl-37 have a natural existence with a stable half-life [3].

Chlorine is a chemical element with symbol Cl and atomic number 17. It also has a relative atomic mass of 35.5. Chlorine is in the halogen group (17) and is the second lightest halogen following fluorine. It belongs to group 17 of the periodic table having trivial name halogens.