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 is most likely to have similar chemical properties?

Na and K

C and N

O and Cl

Mg and Al

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Verified step by step guidance

Understand that elements with similar chemical properties usually belong to the same group (column) in the periodic table because they have the same number of valence electrons.

Identify the groups of each element in the pairs: Na (Sodium) and K (Potassium) are in Group 1 (alkali metals), C (Carbon) is in Group 14 and N (Nitrogen) is in Group 15, O (Oxygen) is in Group 16 and Cl (Chlorine) is in Group 17, Mg (Magnesium) is in Group 2 and Al (Aluminum) is in Group 13.

Compare the groups: Na and K are both alkali metals with one valence electron, which means they tend to have similar chemical behavior such as forming +1 ions.

Recognize that the other pairs belong to different groups and thus have different numbers of valence electrons, leading to different chemical properties.

Conclude that the pair Na and K is most likely to have similar chemical properties because they are in the same group and share similar valence electron configurations.