객관식
Which of the following best describes the electric charge of a neutron?
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- 1. Intro to General Chemistry3h 48m
- Classification of Matter18m
- Physical & Chemical Changes19m
- Chemical Properties7m
- Physical Properties6m
- Intensive vs. Extensive Properties13m
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- 10. Periodic Properties of the Elements3h 10m
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- 18. Aqueous Equilibrium4h 47m
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- 22. Organic Chemistry5h 7m
- Introduction to Organic Chemistry8m
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- Spatial Orientation of Bonds3m
- Intro to Hydrocarbons16m
- Isomers11m
- Chirality15m
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- Naming Alkanes4m
- The Alkyl Groups9m
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- Alkane Reactions7m
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- 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
2. Atoms & Elements
Subatomic Particles
객관식
Which subatomic particle has the smallest mass?
A
Alpha particle
B
Proton
C
Neutron
D
Electron
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검증된 단계별 안내1
Identify the subatomic particles mentioned: alpha particle, proton, neutron, and electron.
Recall that an alpha particle is composed of 2 protons and 2 neutrons, so its mass is roughly the sum of these nucleons, making it much heavier than individual protons or neutrons.
Understand that protons and neutrons have similar masses, each approximately 1 atomic mass unit (amu).
Recognize that electrons are fundamental particles with a mass about 1/1836 that of a proton, making them significantly lighter than protons and neutrons.
Conclude that among the given options, the electron has the smallest mass.
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