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

2. Atoms & Elements

The Atom

General Chemistry

2. Atoms & Elements

The Atom

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Multiple Choice

Why do atoms have no overall charge?

Because they have more electrons than protons.

Because they have an equal number of neutrons and electrons.

Because they have an equal number of protons and electrons.

Because they have more neutrons than protons.

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Verified step by step guidance

Understand the structure of an atom: An atom consists of protons, neutrons, and electrons. Protons and neutrons are located in the nucleus, while electrons orbit around the nucleus.

Recognize the charges of subatomic particles: Protons have a positive charge, electrons have a negative charge, and neutrons are neutral (no charge).

Identify the role of protons and electrons in determining the charge of an atom: The overall charge of an atom is determined by the balance between the number of protons and electrons.

Explain why atoms have no overall charge: Atoms are electrically neutral when they have an equal number of protons and electrons, as the positive charges of protons are balanced by the negative charges of electrons.

Clarify common misconceptions: The number of neutrons does not affect the overall charge of an atom, as neutrons are neutral. Therefore, the balance between protons and electrons is key to an atom's neutrality.