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by Janey Levy
Krypton (Kr), a noble gas, is sometimes known as the hidden gas because it was so hard to isolate from the air. Scientists, however, have discovered that krypton is useful in many ways. It is used in lighting, lasers, and medicine. It is used to detect leaks in sealed containers and to measure X-rays. Scientists have even used it to determine the age of water locked away ...more
Hardcover, 48 pages
Published September 1st 2008 by Rosen Central
(first published August 15th 2008)
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This is a wonderful book in the series "Understanding the Elements of the Periodic Table", written with young people in mind. The series itself seems a mixed bag; some books good, some not so good. I expected this book to be not so good; how interesting can a book on an inert gas be? In fact, this book quoted the chemist's old joke that if anyone wrote a book on the chemical properties of inert gases it would be filled with empty pages! I'm glad that the pages of this book were not empty. I had ...more