What is Chlorine? Origin / Meaning of the name Chlorine
The name originates from the Greek word 'khloros' meaning green referring to the color of the gas.
What is Chlorine? Periodic Table Group and Classification of the Chlorine Element
Elements can be classified based on their physical states (States of Matter) e.g. gas, solid or liquid. This element is a gas. Chlorine is classified as an element in the 'Halogens' section which can be located in group 7 of the Periodic Table. The term "halogen" means "salt-former" and compounds containing halogens are called "salts". The halogens exist, at room temperature, in all three states of matter - Gases such as Fluorine & Chlorine, Solids such as Iodine and Astatine and Liquid as in Bromine. For additional facts and information refer to Chlorine Properties.
What is Chlorine? Occurrence of the Chlorine Element
Obtained from Earth's oceans salt
Found only as the chloride ion
1.9% of the mass of seawater is chloride ions
Abundances of the element in different environments
% in Universe 0.0001%
% in Sun 0.0008%
% in Meteorites 0.037%
% in Earth's Crust 0.017%
% in Oceans 2%
% in Humans 0.12%