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 correctly represents the Lewis dot structure for neutral silicon monoxide (SiO)?

Si and O are connected by a triple bond, with one lone pair on O and one lone pair on Si.

Si and O are connected by a double bond, with three lone pairs on O and one lone pair on Si.

Si and O are connected by a double bond, with two lone pairs on O and two lone pairs on Si.

Si and O are connected by a single bond, with three lone pairs on O and three lone pairs on Si.

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Verified step by step guidance

Step 1: Determine the total number of valence electrons available for bonding in SiO. Silicon (Si) has 4 valence electrons, and oxygen (O) has 6 valence electrons, so total valence electrons = 4 + 6 = 10.

Step 2: Connect Si and O with a bond and distribute the remaining electrons to satisfy the octet rule for both atoms. Start by trying a single bond and then increase bond order if needed to satisfy octets.

Step 3: Check the octet rule for both atoms. Oxygen typically prefers 8 electrons (including bonding and lone pairs), and silicon also tends to follow the octet rule but can sometimes have fewer or more electrons.

Step 4: Assign lone pairs to each atom after forming the bonds. Remember that each bond counts as 2 electrons shared between atoms, and lone pairs are pairs of electrons localized on one atom.

Step 5: Evaluate the formal charges on Si and O for each bonding scenario (single, double, triple bonds) to find the most stable Lewis structure with the lowest formal charges, which usually corresponds to the correct Lewis structure.