The electronic configuration of an element is 2, 8, 8, 2. This element is :

An alkali metal

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An alkaline earth metal

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A halogen

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A noble gas

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Solution

The correct option is D An alkaline earth metal
The element has $2$ electrons in its outermost shell. Thus it should belong to group IIA. Thus it is an alkaline earth metal.

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If the valence shell electronic structure for an element is $n s^{2} n p^{5}$ , this element will belong to the group of

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State (i) valency of each element (ii) which one is a metal (iii) which is a non-metal (iv) which is an inert gas.

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