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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 of the following elements would have chemical properties most similar to potassium (K)?

Magnesium (Mg)

Sodium (Na)

Calcium (Ca)

Aluminum (Al)

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Verified step by step guidance

Identify the position of potassium (K) on the periodic table. Potassium is in Group 1 (alkali metals) and Period 4.

Recall that elements in the same group (vertical column) of the periodic table have similar chemical properties because they have the same number of valence electrons.

Check the given elements and determine their groups: Magnesium (Mg) is in Group 2, Sodium (Na) is in Group 1, Calcium (Ca) is in Group 2, and Aluminum (Al) is in Group 13.

Since Sodium (Na) is in the same group as Potassium (K), it has the same number of valence electrons (1 valence electron), leading to similar chemical behavior.

Conclude that Sodium (Na) would have chemical properties most similar to Potassium (K) because they belong to the same group and share similar valence electron configurations.