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elements of group 0

envir. elementos do grupo 0
element of group 0 A group of monatomic gaseous elements forming group 18 (formerly group 0) of the periodic table: helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), and radon (Rn)
envir. elementos do grupo 0
element of group 0
envir. elementos do grupo 0

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