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 group of elements on the periodic table is known for being nonreactive?

Noble gases (Group 18)

Alkali metals (Group 1)

Alkaline earth metals (Group 2)

Halogens (Group 17)

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Verified step by step guidance

Identify the groups of elements mentioned: Alkali metals (Group 1), Alkaline earth metals (Group 2), Halogens (Group 17), and Noble gases (Group 18).

Recall that reactivity in elements is often related to their electron configuration, especially the number of valence electrons in the outermost shell.

Understand that Noble gases (Group 18) have a full valence shell, which makes them very stable and nonreactive compared to other groups.

Compare this with Alkali metals and Alkaline earth metals, which have 1 and 2 valence electrons respectively, making them highly reactive as they tend to lose electrons to achieve stability.

Note that Halogens (Group 17) are also very reactive because they have 7 valence electrons and tend to gain one electron to complete their valence shell, unlike Noble gases which already have a complete shell.