The noble gases : helium, neon, argon, krypton, xenon, radon

"This book explains the characteristics of the noble gases--helium, neon, argon, krypton, xenon, and radon, including where they are found and how they are used by humans."@en
"The majority of elements on the Periodic Table are able to mingle with other, thereby forming molecules, mixtures, compounds, and new substances. Some elements, however, are "unreactive" and don't mix easily with other elements. In this latter category fall the Noble Gases, so-called because they show an almost aristocratic reserve, standing at a remove from other elements. Readers will learn that while aloof, the noble gases have many practical uses-including in lasers, blimps, hot air balloons, colorful illuminated signage, incandescent light bulbs, flourescent lights, arc welding, window insulation, flash bulbs, strobe lights, and cancer treatment."@en
"Describes the noble gases, including how they were discovered and where they can be found in everyday objects."