The element-of symbol is used in mathematical set theory to indicate that a point, object or number belongs to a certain set. The symbol resembles the lowercase Greek letter epsilon, but stretched out ...

It happens all over the periodic table. The chemical symbol for lead is Pb. For mercury, Hg. For antimony, Sb. My chemistry teacher in high school cracked up every time she referred to the symbol for ...

The International Union of Pure and Applied Chemistry Joint Working Party has announced the official names and symbols of the chemical elements formerly known as 113, 115, 117 and 118. The proposed ...

Chemistry textbooks as we know it are officially out of date, as four new elements will soon be added to the periodic table. Elements 113, 115, 117 and 118 have formally been recognized by the ...

At one point, while drowning in research for The Disappearing Spoon, I could pretty much name every element on the periodic table, in order. I was more than happy to let this "talent" lapse, ...