객관식
Which subatomic particle is found in the nucleus of an atom and has no electric charge?
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- 1. Intro to General Chemistry3h 48m
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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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- Noble Gas Compounds3m
- 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
- Intro to Crystal Field Theory10m
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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
The Atom
객관식
The number of protons in one atom of an element determines the atom's:
A
isotopic abundance
B
atomic number
C
number of neutrons
D
mass number
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검증된 단계별 안내1
Understand that an atom is composed of protons, neutrons, and electrons. The number of protons defines the identity of the element.
Recall that the atomic number is defined as the number of protons in the nucleus of an atom.
Recognize that isotopic abundance refers to the relative amount of different isotopes of an element, which differ in the number of neutrons, not protons.
Know that the mass number is the total number of protons and neutrons in the nucleus, so it depends on both, not just protons.
Therefore, the number of protons uniquely determines the atomic number, which identifies the element.
