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How many protons are present in a neutral atom of fluorine?
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- 1. Intro to General Chemistry4h 5m
- Classification of Matter18m
- Physical & Chemical Changes19m
- Chemical Properties7m
- Physical Properties6m
- Intensive vs. Extensive Properties15m
- Temperature13m
- Scientific Notation13m
- SI Units8m
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- Dimensional Analysis24m
- Density12m
- Density of Geometric Objects19m
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- 2. Atoms & Elements4h 40m
- The Atom10m
- Subatomic Particles17m
- Isotopes17m
- Ions27m
- Atomic Mass32m
- Periodic Table: Classifications15m
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- Polyatomic Ions25m
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- Naming Alkanes4m
- The Alkyl Groups9m
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- 23. Chemistry of the Nonmetals2h 39m
- Main Group Elements: Bonding Types4m
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- Production of Hydrogen8m
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- Nitrogen Family Reactions12m
- 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
- Naming Coordination Compounds22m
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- Isomerism in Coordination Complexes17m
- Orientations of D Orbitals4m
- Intro to Crystal Field Theory10m
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- 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
The Atom
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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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Guida verificata passo dopo passo1
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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