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1. The Chemical World(0)

The Scientific Method
(0)

2. Measurement and Problem Solving(0)

Scientific Notation
(0)

SI Units (Simplified)
(0)

Metric Prefixes
(0)

Significant Figures (Simplified)
(0)

Significant Figures: Precision in Measurements
(0)

Significant Figures: In Calculations
(0)

Conversion Factors (Simplified)
(0)

Dimensional Analysis
(0)

Density
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Density of Non-Geometric Objects
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3. Matter and Energy(0)

Classification of Matter
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States of Matter
(0)

Physical & Chemical Changes
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Chemical Properties
(0)

Physical Properties
(0)

Temperature (Simplified)
(0)

Law of Conservation of Mass
(0)

Nature of Energy
(0)

First Law of Thermodynamics
(0)

Endothermic & Exothermic Reactions
(0)

Heat Capacity
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Thermal Equilibrium (Simplified)
(0)

Intensive vs. Extensive Properties
(0)

4. Atoms and Elements(0)

The Atom (Simplified)
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Subatomic Particles (Simplified)
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Isotopes
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Ions (Simplified)
(0)

Atomic Mass (Simplified)
(0)

Periodic Table: Element Symbols
(0)

Periodic Table: Classifications
(0)

Periodic Table: Group Names
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Periodic Table: Representative Elements & Transition Metals
(0)

Periodic Table: Phases (Simplified)
(0)

Periodic Table: Main Group Element Charges
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Atomic Theory
(0)

Rutherford Gold Foil Experiment
(0)

5. Molecules and Compounds(0)

Law of Definite Proportions
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Periodic Table: Elemental Forms (Simplified)
(0)

Naming Monoatomic Cations
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Naming Monoatomic Anions
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Polyatomic Ions
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Naming Ionic Compounds
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Writing Formula Units of Ionic Compounds
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Naming Acids
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Naming Binary Molecular Compounds
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Molecular Models
(0)

Calculating Molar Mass
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6. Chemical Composition(0)

Empirical Formula
(0)

Molecular Formula
(0)

Mole Concept
(0)

Mass Percent
(0)

7. Chemical Reactions(0)

Chemical Reaction: Chemical Change
(0)

Balancing Chemical Equations (Simplified)
(0)

Solubility Rules
(0)

Electrolytes (Simplified)
(0)

Molecular Equations
(0)

Types of Chemical Reactions
(0)

Complete Ionic Equations
(0)

Gas Evolution Equations (Simplified)
(0)

8. Quantities in Chemical Reactions(0)

Stoichiometry
(0)

Limiting Reagent
(0)

Percent Yield
(0)

Thermochemical Equations
(0)

9. Electrons in Atoms and the Periodic Table(0)

Wavelength and Frequency (Simplified)
(0)

Electromagnetic Spectrum (Simplified)
(0)

Bohr Model (Simplified)
(0)

Emission Spectrum (Simplified)
(0)

Electronic Structure
(0)

Electronic Structure: Shells
(0)

Electronic Structure: Subshells
(0)

Electronic Structure: Orbitals
(0)

Electronic Structure: Electron Spin
(0)

Electronic Structure: Number of Electrons
(0)

The Electron Configuration (Simplified)
(0)

The Electron Configuration: Condensed
(0)

Ions and the Octet Rule
(0)

Valence Electrons of Elements (Simplified)
(0)

Periodic Trend: Metallic Character
(0)

Periodic Trend: Atomic Radius (Simplified)
(0)

Periodic Trend: Ionization Energy (Simplified)
(0)

Periodic Trend: Electron Affinity (Simplified)
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Electron Arrangements
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The Electron Configuration: Exceptions (Simplified)
(0)

10. Chemical Bonding(0)

Lewis Dot Symbols (Simplified)
(0)

Ionic Bonding
(0)

Covalent Bonds
(0)

Lewis Dot Structures: Neutral Compounds (Simplified)
(0)

Bonding Preferences
(0)

Multiple Bonds
(0)

Lewis Dot Structures: Multiple Bonds
(0)

Lewis Dot Structures: Ions (Simplified)
(0)

Lewis Dot Structures: Exceptions (Simplified)
(0)

Resonance Structures (Simplified)
(0)

Valence Shell Electron Pair Repulsion Theory (Simplified)
(0)

Electron Geometry (Simplified)
(0)

Molecular Geometry (Simplified)
(0)

Bond Angles (Simplified)
(0)

Dipole Moment (Simplified)
(0)

Molecular Polarity (Simplified)
(0)

11 Gases(0)

Pressure Units
(0)

Kinetic Molecular Theory
(0)

The Ideal Gas Law
(0)

The Ideal Gas Law Derivations
(0)

The Ideal Gas Law Applications
(0)

Chemistry Gas Laws
(0)

Chemistry Gas Laws: Combined Gas Law
(0)

Standard Temperature and Pressure
(0)

Dalton's Law: Partial Pressure (Simplified)
(0)

Gas Stoichiometry
(0)

12. Liquids, Solids, and Intermolecular Forces(0)

Intermolecular Forces (Simplified)
(0)

Intermolecular Forces and Physical Properties
(0)

Atomic, Ionic and Molecular Solids
(0)

Heating and Cooling Curves
(0)

13. Solutions(0)

Solutions
(0)

Solubility and Intermolecular Forces
(0)

Solutions: Mass Percent
(0)

Molarity
(0)

Osmolarity
(0)

Solubility: Temperature Effect
(0)

Intro to Henry's Law
(0)

Dilutions
(0)

Solution Stoichiometry
(0)

Molality
(0)

The Colligative Properties
(0)

Boiling Point Elevation
(0)

Freezing Point Depression
(0)

Osmosis
(0)

14. Acids and Bases(0)

Acid-Base Introduction
(0)

Arrhenius Acid and Base
(0)

Bronsted Lowry Acid and Base
(0)

Acid and Base Strength
(0)

The pH Scale
(0)

Auto-Ionization
(0)

pH of Strong Acids & Bases
(0)

Acid-Base Reactions
(0)

Buffers
(0)

Strong Acid Strong Base Titrations (Simplified)
(0)

15. Chemical Equilibrium(0)

Rate of Reaction
(0)

Energy Diagrams
(0)

Chemical Equilibrium
(0)

The Equilibrium Constant
(0)

Le Chatelier's Principle
(0)

Solubility Product Constant (Ksp)
(0)

16. Oxidation and Reduction(0)

Calculate Oxidation Numbers
(0)

Redox Reactions
(0)

Spontaneous Redox Reactions
(0)

Balancing Redox Reactions: Acidic Solutions
(0)

Balancing Redox Reactions: Basic Solutions
(0)

Galvanic Cell (Simplified)
(0)

17. Radioactivity and Nuclear Chemistry(0)

Types of Radiation
(0)

Alpha Decay
(0)

Beta Decay
(0)

Gamma Emission
(0)

Positron Emission
(0)

Radioactive Half-Life
(0)

Measuring Radioactivity
(0)

9. Electrons in Atoms and the Periodic Table

Electronic Structure: Shells

9. Electrons in Atoms and the Periodic Table

Electronic Structure: Shells: Videos & Practice Problems

Video Lessons Practice Worksheet

Electronic Structure: Shells Practice Problems

20 problems

Problem 1Multiple Choice

What is a shell in the context of atomic structure?

Problem 2Multiple Choice

How does the principal quantum number (n) influence atomic orbitals?

Problem 3Multiple Choice

If an element is located in the 4th period of the periodic table, how many shells does it have?

Problem 4Multiple Choice

Given the current periodic table has 7 rows, what is the implication for the number of shells, and what might future discoveries entail?

Problem 5Multiple Choice

What factors contribute to the dynamic nature of the periodic table?

Problem 6Multiple Choice

What is the limitation of the principal quantum number (n)?

Problem 7Multiple Choice

How does the relationship between shell numbers and the periodic table impact the discovery of new elements?

Problem 8Multiple Choice

In what ways might technological advancements and exploration lead to the expansion of the periodic table?

Problem 9Multiple Choice

Which of the following best describes the relationship between a shell and potential energy?

Problem 10Multiple Choice

Combine your understanding of quantum numbers to predict how an increase in n affects an atom's chemical properties.

Problem 11Multiple Choice

What is the relationship between shell numbers and the periods of the periodic table?

Problem 12Multiple Choice

How many shells are currently recognized in the periodic table, and what does this imply for future discoveries?

Problem 13Multiple Choice

Which scenario best illustrates the dynamic nature of the periodic table?

Problem 14Multiple Choice

Synthesize your understanding of quantum numbers to explain why n is limited to whole numbers.

Problem 15Multiple Choice

Analyze how the relationship between shell numbers and the periodic table could affect future scientific research.

Problem 16Multiple Choice

Evaluate the role of technological advancements in the potential expansion of the periodic table.

Problem 17Multiple Choice

Which statement accurately defines a shell in atomic structure?

Problem 18Multiple Choice

What happens to the size and energy level of atomic orbitals as the principal quantum number (n) increases?

Problem 19Multiple Choice

How would you determine the number of shells in an atom based on its position in the periodic table?

Problem 20Multiple Choice

Synthesize your knowledge of the periodic table to predict how future discoveries might affect the number of recognized shells.

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Electronic Structure Practice Problems Electronic Structure: Subshells Practice Problems

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