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

Periodic Table: Group Names

General Chemistry

2. Atoms & Elements

Periodic Table: Group Names

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Multiple Choice

Which pair of elements has chemical reactivity most similar to chlorine?

Sodium and potassium

Fluorine and bromine

Carbon and nitrogen

Oxygen and sulfur

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Verified step by step guidance

Understand that chemical reactivity is often similar among elements in the same group (vertical column) of the periodic table because they have the same number of valence electrons.

Identify the group of chlorine in the periodic table; chlorine is a halogen located in Group 17.

Look for elements in the options that are also halogens (Group 17), as they will have similar chemical properties and reactivity to chlorine.

Recognize that fluorine and bromine are both halogens like chlorine, while sodium and potassium are alkali metals (Group 1), carbon and nitrogen are in different groups (14 and 15), and oxygen and sulfur are chalcogens (Group 16).

Conclude that the pair with the most similar chemical reactivity to chlorine is fluorine and bromine because they share the same group and similar valence electron configurations.