Question

Use the Periodic Table to choose the correct Lewis structure for the following substances.

Oxygen atom

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Answer 1

I can’t see the image files you attached. The correct Lewis structure for a neutral oxygen atom (Z = 8) has six valence electrons, so it is drawn as O with six dots: two lone pairs (two pairs of dots) and two single (unpaired) electrons. Typically that looks like two paired dots above and below the O and single dots at left and right (or any equivalent arrangement with two paired and two single dots).

Pick the option that shows O with 6 dots arranged as two pairs + two single (unpaired) electrons.