Lewis Dot Diagram(s) for Compounds

How many valence electrons does an oxygen atom have?

• 2

• 4

• 6

• 8

What is the primary goal for atoms sharing valence electrons in covalent bonding?

• To become electrically neutral

• To achieve a full octet or duet

• To increase their atomic mass

• To form ionic bonds

In a Lewis diagram, what does a single line between two atoms represent?

• A lone pair of electrons

• Two non-bonding electrons

• A single bond with two shared electrons

• A double bond with four shared electrons

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When drawing a Lewis diagram for a molecule, how is the central atom typically determined?

• It is the element with the most valence electrons

• It is the element that appears most frequently in the molecule

• It is usually the element of which there is only one in the molecule

• It is always hydrogen