It is now known, however, that several of these elements are quite abundant on Earth and in the rest of the universe, so the designation rare is misleading. When the members of the group were discovered and identified, they were thought to be exceedingly rare, as well as chemically inert, and therefore were called the rare or inert gases. Their electronic structures and the finding that some of them do indeed form compounds has led to the more appropriate designation, Group 18. They traditionally have been labeled Group 0 in the periodic table because for decades after their discovery it was believed that they could not bond to other atoms that is, that their atoms could not combine with those of other elements to form chemical compounds. The noble gases are colourless, odourless, tasteless, nonflammable gases. The elements are helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), radon (Rn), and oganesson (Og). Noble gas, any of the seven chemical elements that make up Group 18 (VIIIa) of the periodic table. Interactive periodic table Encyclopædia Britannica, Inc. SpaceNext50 Britannica presents SpaceNext50, From the race to the Moon to space stewardship, we explore a wide range of subjects that feed our curiosity about space!.Learn about the major environmental problems facing our planet and what can be done about them! Saving Earth Britannica Presents Earth’s To-Do List for the 21st Century.Britannica Beyond We’ve created a new place where questions are at the center of learning.
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PRINTABLE PERIODIC TABLE OF ELEMENTS WITH NOBLE GASES HOW TO
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