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

21. Nuclear Chemistry

Intro to Radioactivity

General Chemistry

21. Nuclear Chemistry

Intro to Radioactivity

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Multiple Choice

Which of the following units takes into consideration the amount of damage to biological molecules?

rem

rad

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Verified step by step guidance

Understand the units provided: Gy (Gray), rem (Roentgen equivalent man), rad (Radiation absorbed dose), and Ci (Curie). Each of these units measures different aspects of radiation.

Gy (Gray) is a unit of absorbed radiation dose, which measures the amount of radiation energy absorbed per unit mass of tissue. It does not directly account for biological damage.

Rad (Radiation absorbed dose) is similar to Gy, as it also measures the absorbed dose of radiation but in different units. Like Gy, it does not consider biological damage.

Ci (Curie) is a unit of radioactivity, measuring the number of radioactive decays per second. It does not directly relate to biological damage.

Rem (Roentgen equivalent man) is the unit that considers the biological effect of radiation. It accounts for the type of radiation and its impact on biological tissues, making it the correct answer for measuring damage to biological molecules.