Multiple Choice
Which scientist was the first to arrange the elements in order of increasing atomic number on the periodic table?
Table of contents
- 1. Intro to General Chemistry3h 48m
- Classification of Matter18m
- Physical & Chemical Changes19m
- Chemical Properties7m
- Physical Properties5m
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- 2. Atoms & Elements4h 17m
- The Atom9m
- Subatomic Particles15m
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- Atomic Mass28m
- Periodic Table: Classifications11m
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- 10. Periodic Properties of the Elements3h 9m
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- The Electron Configurations: Exceptions13m
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- 16. Chemical Equilibrium2h 30m
- 17. Acid and Base Equilibrium5h 2m
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- Measuring Radioactivity7m
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- 22. Organic Chemistry5h 7m
- Introduction to Organic Chemistry8m
- Structural Formula8m
- Condensed Formula10m
- Skeletal Formula6m
- Spatial Orientation of Bonds3m
- Intro to Hydrocarbons16m
- Isomers11m
- Chirality15m
- Functional Groups in Chemistry11m
- Naming Alkanes4m
- The Alkyl Groups9m
- Naming Alkanes with Substituents13m
- Naming Cyclic Alkanes6m
- Naming Other Substituents8m
- Naming Alcohols11m
- Naming Alkenes11m
- Naming Alkynes9m
- Naming Ketones5m
- Naming Aldehydes5m
- Naming Carboxylic Acids4m
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- Naming Ethers5m
- Naming Amines5m
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- Amide Formation4m
- Benzene Reactions10m
- 23. Chemistry of the Nonmetals2h 39m
- Main Group Elements: Bonding Types4m
- Main Group Elements: Boiling & Melting Points7m
- Main Group Elements: Density11m
- Main Group Elements: Periodic Trends7m
- The Electron Configuration Review16m
- Periodic Table Charges Review20m
- Hydrogen Isotopes4m
- Hydrogen Compounds11m
- Production of Hydrogen8m
- Group 1A and 2A Reactions7m
- Boron Family Reactions7m
- Boron Family: Borane7m
- Borane Reactions7m
- Nitrogen Family Reactions12m
- Oxides, Peroxides, and Superoxides12m
- Oxide Reactions4m
- Peroxide and Superoxide Reactions6m
- Noble Gas Compounds3m
- 24. Transition Metals and Coordination Compounds3h 19m
- Atomic Radius & Density of Transition Metals11m
- Electron Configurations of Transition Metals7m
- Electron Configurations of Transition Metals: Exceptions11m
- Paramagnetism and Diamagnetism10m
- Ligands10m
- Complex Ions5m
- Coordination Complexes7m
- Classification of Ligands11m
- Coordination Numbers & Geometry9m
- Naming Coordination Compounds22m
- Writing Formulas of Coordination Compounds8m
- Isomerism in Coordination Complexes17m
- Orientations of D Orbitals4m
- Intro to Crystal Field Theory10m
- Crystal Field Theory: Octahedral Complexes5m
- Crystal Field Theory: Tetrahedral Complexes4m
- Crystal Field Theory: Square Planar Complexes4m
- Crystal Field Theory Summary8m
- Magnetic Properties of Complex Ions9m
- Strong-Field vs Weak-Field Ligands6m
- Magnetic Properties of Complex Ions: Octahedral Complexes11m
- 1. The Chemical World10m
2. Atoms & Elements
Periodic Table: Classifications
Multiple Choice
Which of the following elements is not classified as a metal?
A
Na
B
Al
C
O
D
Fe
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Verified step by step guidance1
Recall the classification of elements into metals, nonmetals, and metalloids based on their properties and position in the periodic table.
Identify the elements given: Na (Sodium), Al (Aluminum), Fe (Iron), and O (Oxygen).
Check the periodic table groups: Na, Al, and Fe are located on the left and center of the periodic table, which are typically metals.
Recognize that Oxygen (O) is located on the right side of the periodic table and is a nonmetal.
Conclude that Oxygen (O) is the element that is not classified as a metal among the options provided.
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