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Question

If the valency shell electronic structure for an element is $$ns^{2} np^5$$, this element will belong to the group of:


A
alkali metals
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B
inert metals
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C
noble gases
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D
halogens
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Solution

The correct option is C halogens
The valence shell or orbital electronic configuration of halogens(17th group elements) is $$ns^2\  np^5$$.

Hence, the correct option is $$\text{D}$$

Chemistry

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