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How many electrons can the first energy level (n = 1) of an atom hold?
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- 1. Intro to General Chemistry4h 5m
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- The Atom10m
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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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- Oxides, Peroxides, and Superoxides12m
- Oxide Reactions4m
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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
Scelta multipla
What is the atomic number of an atom that contains 13 protons?
A
13
B
1
C
26
D
6
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Guida verificata passo dopo passo1
Recall that the atomic number of an atom is defined as the number of protons in its nucleus.
Identify the number of protons given in the problem, which is 13.
Since the atomic number equals the number of protons, the atomic number of this atom is 13.
Understand that the atomic number uniquely identifies an element on the periodic table.
Therefore, an atom with 13 protons has an atomic number of 13.
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