객관식
How many protons are present in a neutral atom of fluorine?
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- 1. Intro to General Chemistry3h 46m
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- 23. Chemistry of the Nonmetals2h 39m
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- Atomic Radius & Density of Transition Metals11m
- Electron Configurations of Transition Metals7m
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- Ligands10m
- Complex Ions5m
- Coordination Complexes7m
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- Coordination Numbers & Geometry9m
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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
Multiple Choice
Nitric acid has the chemical formula HNO3. How many atoms of nitrogen are present in one formula unit of HNO3?
A
2
B
0
C
1
D
3
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검증된 단계별 안내1
Identify the chemical formula given: HNO3.
Understand that a formula unit represents the simplest ratio of atoms in a compound.
Look at the subscript numbers in the formula to determine the number of each type of atom: H (1), N (1), O (3).
Focus on the nitrogen (N) atom and note the subscript next to it, which indicates how many nitrogen atoms are present.
Conclude that there is exactly 1 nitrogen atom in one formula unit of HNO3.
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