Table of contents

1. Intro to General Chemistry3h 48m
2. Atoms & Elements4h 16m
3. Chemical Reactions4h 10m
4. BONUS: Lab Techniques and Procedures1h 36m
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

Subatomic Particles

General Chemistry

2. Atoms & Elements

Subatomic Particles

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Multiple Choice

What is the smallest subatomic particle in terms of mass?

Proton

Neutron

Alpha particle

Electron

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Verified step by step guidance

Identify the subatomic particles listed: proton, neutron, alpha particle, and electron.

Understand that subatomic particles are the building blocks of atoms, with protons and neutrons located in the nucleus and electrons orbiting around the nucleus.

Recall the relative masses of these particles: protons and neutrons have similar masses, which are significantly larger than that of an electron. An alpha particle, which consists of 2 protons and 2 neutrons, is even heavier.

Recognize that the electron is much lighter than the other particles mentioned. Its mass is approximately 1/1836 that of a proton.

Conclude that the electron is the smallest subatomic particle in terms of mass among the options provided.