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How many protons are present in a neutral atom of chlorine?
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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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- Significant Figures9m
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- Conversion Factors16m
- Dimensional Analysis24m
- Density12m
- Density of Geometric Objects19m
- Density of Non-Geometric Objects6m
- 2. Atoms & Elements4h 40m
- The Atom10m
- Subatomic Particles17m
- Isotopes17m
- Ions27m
- Atomic Mass32m
- Periodic Table: Classifications15m
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- Periodic Table: Representative Elements & Transition Metals7m
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- Periodic Table: Charges20m
- Calculating Molar Mass10m
- Mole Concept31m
- Law of Conservation of Mass5m
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- Millikan Oil Drop Experiment8m
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- 3. Chemical Reactions4h 34m
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- Combustion Analysis39m
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- Polyatomic Ions25m
- Naming Ionic Compounds12m
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- Naming Acids23m
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- Functional Groups in Chemistry11m
- 4. BONUS: Lab Techniques and Procedures1h 30m
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- 6. Chemical Quantities & Aqueous Reactions4h 17m
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- Molarity22m
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- Dilutions15m
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- Gas Evolution Equations13m
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- Calculate Oxidation Numbers16m
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- Chirality12m
- Functional Groups in Chemistry11m
- 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
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- 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
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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
Scelta multipla
How many protons are present in a neutral sodium (Na) atom?
A
11
B
12
C
23
D
10
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Guida verificata passo dopo passo1
Recall that the number of protons in an atom is equal to its atomic number, which uniquely identifies the element.
Look up the atomic number of sodium (Na) on the periodic table; this number represents the number of protons in a neutral sodium atom.
Understand that a neutral atom has an equal number of protons and electrons, but the number of protons is fixed and defines the element.
Identify the atomic number of sodium as 11, meaning it has 11 protons in its nucleus.
Conclude that the number of protons in a neutral sodium atom is 11.
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