객관식
Which of the following compounds contains a metal?
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- 1. Intro to General Chemistry3h 46m
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- 23. Chemistry of the Nonmetals2h 39m
- Main Group Elements: Bonding Types4m
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- The Electron Configuration Review16m
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- Oxide Reactions4m
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- 24. Transition Metals and Coordination Compounds3h 19m
- Atomic Radius & Density of Transition Metals11m
- Electron Configurations of Transition Metals7m
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- Paramagnetism and Diamagnetism10m
- Ligands10m
- Complex Ions5m
- Coordination Complexes7m
- Classification of Ligands11m
- Coordination Numbers & Geometry9m
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- Isomerism in Coordination Complexes17m
- Orientations of D Orbitals4m
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- Crystal Field Theory Summary8m
- Magnetic Properties of Complex Ions9m
- Strong-Field vs Weak-Field Ligands6m
- Magnetic Properties of Complex Ions: Octahedral Complexes11m
2. Atoms & Elements
Periodic Table: Classifications
Multiple Choice
Which of the following elements, most abundant in Earth's crust, is classified as a nonmetal?
A
Aluminum
B
Oxygen
C
Calcium
D
Iron
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검증된 단계별 안내1
Identify the elements listed: Aluminum, Oxygen, Calcium, and Iron.
Recall the classification of elements into metals, nonmetals, and metalloids based on their properties.
Recognize that Aluminum, Calcium, and Iron are metals, characterized by their conductivity, malleability, and metallic luster.
Understand that Oxygen is a nonmetal, which typically has poor electrical conductivity and exists as a gas at room temperature.
Conclude that among the most abundant elements in Earth's crust listed, Oxygen is the nonmetal.
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