Group 18 of the periodic table, also known as the noble gases, includes elements such as helium, neon, argon, krypton, xenon, and radon. A unique feature of these nonmetals is their inertness or chemical inactivity under standard conditions. This is due to their full valence electron shells, which make them highly stable and unlikely to form chemical bonds with other elements. As a result, noble gases do not readily react with other substances, which distinguishes them from other groups of nonmetals in the periodic table. However, under certain conditions, particularly with heavy noble gases, some compounds have been synthesized, indicating that their inertness can be overcome.
Which feature is unique to group 18 nonmetals
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