Table of contents

1. Intro to General Chemistry3h 48m
2. Atoms & Elements4h 16m
3. Chemical Reactions4h 10m
4. BONUS: Lab Techniques and Procedures1h 38m
5. BONUS: Mathematical Operations and Functions48m
6. Chemical Quantities & Aqueous Reactions3h 53m
7. Gases3h 49m
8. Thermochemistry2h 37m
9. Quantum Mechanics2h 58m
10. Periodic Properties of the Elements3h 9m
11. Bonding & Molecular Structure3h 29m
12. Molecular Shapes & Valence Bond Theory1h 57m
13. Liquids, Solids & Intermolecular Forces2h 23m
14. Solutions3h 1m
15. Chemical Kinetics2h 53m
16. Chemical Equilibrium2h 29m
17. Acid and Base Equilibrium5h 1m
18. Aqueous Equilibrium4h 47m
19. Chemical Thermodynamics1h 50m
20. Electrochemistry2h 42m
21. Nuclear Chemistry2h 36m
22. Organic Chemistry5h 7m
23. Chemistry of the Nonmetals2h 39m
24. Transition Metals and Coordination Compounds3h 16m

11. Bonding & Molecular Structure

Lewis Dot Structures: Neutral Compounds

General Chemistry

11. Bonding & Molecular Structure

Lewis Dot Structures: Neutral Compounds

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Multiple Choice

Which of the following statements correctly describes the Lewis dot structure of the neutral compound carbonyl sulfide (CSO)?

The central atom is oxygen, which forms a double bond with carbon and a single bond with sulfur.

The central atom is carbon, which forms a double bond with sulfur and a double bond with oxygen.

The central atom is sulfur, which forms a single bond with carbon and a triple bond with oxygen.

The central atom is carbon, which forms a triple bond with sulfur and a single bond with oxygen.

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Verified step by step guidance

Identify the atoms involved in carbonyl sulfide (CSO): carbon (C), sulfur (S), and oxygen (O). Carbon typically acts as the central atom in such molecules because it can form multiple bonds and connect to both other atoms.

Determine the total number of valence electrons available: Carbon has 4, sulfur has 6, and oxygen has 6, for a total of 16 valence electrons in the neutral molecule.

Arrange the atoms with carbon in the center, and sulfur and oxygen on either side. This is because carbon usually forms the central atom in triatomic molecules with different atoms.

Form bonds between carbon and the other atoms. Since the molecule is neutral and stable, carbon will form double bonds with both sulfur and oxygen to satisfy the octet rule for all atoms involved.

Verify that all atoms have complete octets and that the total number of electrons used in bonding and lone pairs equals the total valence electrons calculated initially.