Like everything we see in the world, isotopes are a type of atom, the smallest unit of matter that retains all the chemical properties of an element. Isotopes are forms of a chemical element with ...
The nucleus of each atom contains protons and neutrons. While the number of protons defines the element (e.g., hydrogen, carbon, etc.) and the sum of the protons and neutrons gives the atomic mass, ...
If you’ve ever studied a periodic table of the elements (see below), you’re probably already aware that this table reveals a great deal about the chemical properties of the atoms that make up our ...
When you hear the term “radioactive” you likely think “bad news,” maybe along the lines of fallout from an atomic bomb. But radioactive materials are actually used in a wide range of beneficial ...
I read George B. Kauffman’s article “Celebrating the Isotope” with great interest, as I did not know most of this history (C&EN, Dec. 2, 2013, page 30). However, there are some confusing statements in ...
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