A) They are non-metallic in nature
B) They exist in atomic form
C) They are radioactive in nature
D) Xenon is the most reactive among them
Correct Answer: C
Solution :
Only Radon (Rn) is radioactive whereas other noble gases (i.e., He, Ne, Ar, Kr, Xe) are non-radioactive.You need to login to perform this action.
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