Chlorine (Cl) forms a salt when it is combined with a metal. This element belongs in <span>halogens.
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An element cannot be broken down any further. Elements can be found on the periodic table
0.048 percent is the answer
The compound that was formed by the reaction of the first oxygen released by Cyanobacteria and iron are the metals of the earths crust. Cyanobacteria was the first organisms that used water instead of hydrogen sulfide or other compounds as a source of electrons and hydrogen for fixing carbon dioxide. Early Cyanobacteria inhabited marine sediments where Archean banded iron formations were deposited; consisting of reddish layers rich in iron oxide.
