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 CH3F (fluoromethane)?

The central carbon atom forms a double bond with fluorine and single bonds with three hydrogen atoms.

The central carbon atom forms single bonds with three hydrogen atoms and one fluorine atom, and all atoms have complete octets except hydrogen.

The fluorine atom shares two pairs of electrons with carbon, resulting in a carbon-fluorine double bond.

Each hydrogen atom forms a double bond with carbon, and fluorine is bonded to carbon with a single bond.

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Verified step by step guidance

Identify the central atom in CH3F, which is carbon, because carbon typically forms four bonds and is less electronegative than fluorine.

Determine the number of valence electrons for each atom: carbon has 4, each hydrogen has 1, and fluorine has 7 valence electrons.

Draw single bonds between the carbon atom and each of the three hydrogen atoms, and also a single bond between carbon and fluorine, since carbon typically forms four single bonds to satisfy the octet rule.

Check the octet rule for each atom: carbon should have 8 electrons around it (from the four single bonds), fluorine should have 8 electrons (one bonding pair plus three lone pairs), and each hydrogen should have 2 electrons (one bonding pair).

Confirm that no double bonds are necessary because carbon's octet is complete with four single bonds, and fluorine achieves its octet with one single bond plus three lone pairs.