Table of contents

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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 group of elements in the periodic table is considered the least reactive?

Alkali metals (Group 1)

Alkaline earth metals (Group 2)

Noble gases (Group 18)

Halogens (Group 17)

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Verified step by step guidance

Understand that reactivity in the periodic table generally depends on how easily an element can gain, lose, or share electrons to achieve a stable electron configuration.

Recall that alkali metals (Group 1) are highly reactive because they have one electron in their outermost shell, which they tend to lose easily.

Recognize that alkaline earth metals (Group 2) are also reactive, though less so than alkali metals, because they have two electrons in their outer shell that they can lose.

Know that halogens (Group 17) are very reactive nonmetals because they have seven electrons in their outer shell and tend to gain one electron to complete their octet.

Identify that noble gases (Group 18) are the least reactive group because they already have a full outer electron shell, making them very stable and unlikely to react under normal conditions.