16. Zero group elements are called noble gases because
The electronic configuration is stable
These elements do not take part in chemical reaction
The outermost shell is completely filled
All of the above
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(1) In the atoms of the inert gas elements (zero group elements), all the electronic shells, including the outermost shell, are completely filled. (2) The electronic configuration is stable, and these elements do not lose or accept electrons. These elements do not take part in chemical reactions. These elements are gases. Hence, they are called noble gases.
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