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Draw the Lewis symbols for the following atoms by adding electrons.

a.) Lithium
b.) Magnesium
c.) Aluminum

1 Answer

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Final answer:

The student's question pertains to the understanding and creation of Lewis electron dot diagrams to represent valence electrons around an atom's symbol.

Step-by-step explanation:

The question asks to draw the Lewis electron dot diagram for atoms. Lewis diagrams are a representation that shows the valence electrons as dots around the chemical symbol of an atom.

Lewis symbols are devised to illustrate the valence electron configurations of atoms and monatomic ions. To draw an element's Lewis symbol, dots are placed around the element's chemical symbol, with one dot for each of the element's valence electrons. Up to four dots are positioned on each side (top, bottom, left, right) of the symbol. If an element has more than four valence electrons, the additional dots are paired with the first dots until all valence electrons are represented.

For example, sulfur has the electron configuration of [Ne]3s² 3p⁴, which means it has six valence electrons. The Lewis symbol for sulfur would have four dots placed singly around the S, followed by two additional dots forming a pair with two of the single dots.

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