Chemical Bonding : Lewis Structures & Molecular Shapes Quiz

*Theme/Title: Lewis Structures & Molecular Shapes
* Description/Instructions
Chemical bonds form different shapes based on the arrangement of their atoms. To determine the shape of the molecule, the number of shared and lone pairs of electrons must be determined. To do this, you must count the available bonding electrons each atom has. Then you must determine central atoms and terminal atoms. Central atoms tend to lie closer to the left of the periodic table than terminal atoms. Terminal atoms typically form single covalent bonds. Shared pairs of electrons are represented by a dashed line. One dashed line indicates one shared pair, or one sigma bond. Two dashed lines indicate two shared pairs, or one sigma bond and one pi bond. Unshared pairs of electrons are represented by two dots. Unshared pairs go where they are needed. The objective of every atom in a Lewis structure is to have an octet, or eight electrons. Please refer to the attached image to help answer the questions. Select the best answer from the given choices.

Group: Chemistry Chemistry Quizzes
Topic: Chemical Bonding

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