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

Isotopes

General Chemistry

2. Atoms & Elements

Isotopes

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Multiple Choice

Which element is commonly used in the radiometric dating of fossils?

Thorium-232

Carbon-14

Potassium-40

Uranium-238

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Verified step by step guidance

Understand the concept of radiometric dating: Radiometric dating is a method used to date materials such as rocks or carbon, in which trace radioactive impurities were selectively incorporated when they formed.

Identify the common isotopes used in radiometric dating: Carbon-14, Potassium-40, Uranium-238, and Thorium-232 are some of the isotopes used for dating different types of materials.

Recognize the specific use of Carbon-14: Carbon-14 is specifically used for dating organic materials, such as fossils, because it is incorporated into living organisms and decays at a known rate after they die.

Consider the half-life of Carbon-14: Carbon-14 has a half-life of about 5,730 years, making it suitable for dating materials that are up to about 50,000 years old.

Conclude that Carbon-14 is the most appropriate isotope for dating fossils, as it is specifically used for dating organic remains, unlike the other isotopes listed which are used for dating rocks and minerals.