Table of contents

Skip topic navigation

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

The Atom

General Chemistry

2. Atoms & Elements

The Atom

Previous problemNext problem

Struggling with General Chemistry?

Join thousands of students who trust us to help them ace their exams!Watch the first video

Multiple Choice

Which parts of the atom move around the nucleus?

Electrons

Protons

Quarks

Neutrons

Previous problemNext problem

Verified step by step guidance

Identify the structure of an atom: An atom consists of a nucleus, which contains protons and neutrons, and electrons that move around the nucleus.

Understand the role of electrons: Electrons are negatively charged particles that orbit the nucleus in various energy levels or shells.

Clarify the position of protons and neutrons: Protons and neutrons are located in the nucleus and do not move around it.

Explain the concept of quarks: Quarks are fundamental particles that make up protons and neutrons, but they do not exist independently in the atom and do not move around the nucleus.

Conclude which particles move around the nucleus: Electrons are the only parts of the atom that move around the nucleus, as they occupy the electron cloud surrounding the nucleus.