The second answer option shows a metal element.
We can arrive at this answer because:
- The Lewis dot diagram is used to demonstrate the electrons in the valence layer of the elements.
- This diagram is made with the symbol of the element surrounded by dots that represent the number of electrons in its valence layer.
Metals have one or two electrons in the valence layer, in which case, in the Lewis point diagram, metal would be represented with one or two points around the element symbol.
Among the answer options shown in the question above, the second option is the only one that represents a metal.
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