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One gram is approximately the same as half the mass of a new U.S.
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<u>Answer:</u> The correct answer is Xenon (Xe).
<u>Explanation:</u>
Noble gases are defined as the gases which have fully filled electronic configuration or stable electronic configuration.
From the given options:
<u>Option 1:</u> Oxygen (O)
The atomic number of this element is 8.
Electronic configuration of this element:
As, this is not the stable electronic configuration. Thus, it is not considered as a noble gas.
<u>Option 2:</u> Nitrogen (N)
The atomic number of this element is 7.
Electronic configuration of this element:
As, this is not the stable electronic configuration. Thus, it is not considered as a noble gas.
<u>Option 3:</u> Chlorine (Cl)
The atomic number of this element is 17.
Electronic configuration of this element:
As, this is not the stable electronic configuration. Thus, it is not considered as a noble gas.
<u>Option 4:</u> Xenon (Xe)
The atomic number of this element is 54.
Electronic configuration of this element:
As, this is a stable electronic configuration. Thus, it is considered as a noble gas.
Hence, the correct answer is Xenon (Xe).