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

Previous problemNext problem

Struggling with General Chemistry?

Join thousands of students who trust us to help them ace their exams!Watch the first video

Multiple Choice

Which of the following elements is considered a noble metal?

Previous problemNext problem

Verified step by step guidance

Understand the definition of noble metals: Noble metals are a group of metals that are resistant to corrosion and oxidation in moist air, unlike most base metals. They are often found in the bottom of the reactivity series and include metals like gold (Au), silver (Ag), and platinum (Pt).

Review the given elements and their properties: Magnesium (Mg) and Sodium (Na) are highly reactive metals, and Iron (Fe) is a transition metal that readily oxidizes (rusts). None of these fit the typical characteristics of noble metals.

Recall that Gold (Au) is well-known for its resistance to corrosion and oxidation, making it a classic example of a noble metal.

Compare the chemical behavior of the listed elements with that of gold to confirm that Au is the noble metal among them.

Conclude that among the options, Au is the noble metal because it exhibits the characteristic chemical inertness and resistance to corrosion that defines noble metals.