What are Lewis structures ?
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the electrons in the outermost shell of an element are shown by dots..
these electrons r also known as valence electronS...
the electrons in the outermost shell of an element are shown by dots..
these electrons r also known as valence electronS...
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The symbol of the atom gives the core (or kernel) of the atom our which valence electrons are shown as dots (⚫) circle (0) or crosses (X). thus in Na, na represents the core of sodium atom and the cross (x) represents the valence electron of sodium.
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