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

Ions

General Chemistry

2. Atoms & Elements

Ions

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Multiple Choice

Which two particles have opposite charges?

Neutron and electron

Proton and electron

Electron and positron

Proton and neutron

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Verified step by step guidance

Understand the concept of electric charge: particles can have positive, negative, or neutral charges.

Recall that a proton carries a positive charge, an electron carries a negative charge, and a neutron is neutral (no charge).

Identify pairs where one particle has a positive charge and the other has a negative charge, which means they have opposite charges.

Evaluate each pair: Neutron and electron (neutral and negative), Proton and electron (positive and negative), Electron and positron (both have charges but positron is positive and electron is negative), Proton and neutron (positive and neutral).

Conclude that pairs with opposite charges are Proton and electron, and Electron and positron, since these pairs consist of one positively charged and one negatively charged particle.