A chemical element is one of those squares on the periodic ... number and organisation of electrons in an atom. Let’s take chlorine as an example. It is positioned in group 7 of the periodic ...

Humans are made of many chemical elements that work together ... elements such as phosphorus (P), sulphur (S) and chlorine (Cl), and metal elements like potassium (K), sodium (Na), calcium ...

Researchers discover a way to potentially reduce CO2 emissions and decrease the need for chlorine to produce ethylene oxide — ...

The chlorine atom has a higher electronegativity than ... a new scale of electronegativity (published in Nature Communications: Thermo-chemical electronegativities of the elements). "It all started ...

The chemical characteristics of the elements can equally well be studied ... Thus the transformation of chloride to. chlorine is oxidation. From chlorine to chlorite, from chlorite to chlorate ...