Chlorine (symbol Cl) is element number 17 of the periodic table and belongs to the “Halogen” category. Its atomic mass is about 35.45, and its phase under standard conditions is Gas. This element sits in period 3 and group 17 of the periodic table, and its electrons are arranged in shells of 2, 8, 7. The short electron configuration of Chlorine is [Ne] 3s² 3p⁵. Known uses of Chlorine include Water disinfection, Bleach and Plastic production.
The electron configuration of Chlorine (Cl), with 17 electrons, is shown below. The last shell (shell 3) is highlighted:
Distribution of 17 electrons of Chlorine across shells K to M:
The halogens are the group 17 elements: highly reactive nonmetals that form salt compounds with metals.
The atomic number of Chlorine (Cl) is 17; that is, every atom of it has 17 protons.
The electron configuration of Chlorine (Cl) is 1s² 2s² 2p⁶ 3s² 3p⁵; in short form it is [Ne] 3s² 3p⁵, and its last shell is 3s² 3p⁵.
The chemical symbol of Chlorine is Cl.
Chlorine is located in period 3 and group 17 and belongs to the “Halogen” category.
The atomic mass of Chlorine is about 35.45 (atomic mass units).
The phase of Chlorine under standard conditions is Gas.
Uses of Chlorine include Water disinfection, Bleach and Plastic production.
Chlorine was discovered by Carl Wilhelm Scheele in 1774.
Fluorine (F)Bromine (Br)Iodine (I)Astatine (At)Tennessine (Ts)
Fluorine (F)Bromine (Br)Iodine (I)Astatine (At)Tennessine (Ts)
