That all the tens of millions of different substances and materials were made up of only 92 elements is a magical story vividly told. Originally published 50 ye
How large is the natural variation in concentration of the various elements in different media? How do the oft-cited "World average concentrations" in different
In-depth, current and accurate information on 112 known chemical elements. For younger and middle school students, yet appropriate for high school students, too
Finding a book on the chemical elements that is neither an advanced, graduate-level text nor a simplistic overview for children is virtually impossible. Now, wi