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1. The Chemical World(0)

The Scientific Method
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2. Measurement and Problem Solving(0)

Scientific Notation
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SI Units (Simplified)
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Metric Prefixes
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Significant Figures (Simplified)
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Significant Figures: Precision in Measurements
(0)

Significant Figures: In Calculations
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Conversion Factors (Simplified)
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Dimensional Analysis
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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
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Physical & Chemical Changes
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Chemical Properties
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Physical Properties
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Temperature (Simplified)
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Law of Conservation of Mass
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Nature of Energy
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First Law of Thermodynamics
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Endothermic & Exothermic Reactions
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Heat Capacity
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Thermal Equilibrium (Simplified)
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Intensive vs. Extensive Properties
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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)
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Atomic Mass (Simplified)
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Periodic Table: Element Symbols
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Periodic Table: Classifications
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Periodic Table: Group Names
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Periodic Table: Representative Elements & Transition Metals
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Periodic Table: Phases (Simplified)
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Periodic Table: Main Group Element Charges
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Atomic Theory
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Rutherford Gold Foil Experiment
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5. Molecules and Compounds(0)

Law of Definite Proportions
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Periodic Table: Elemental Forms (Simplified)
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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
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Calculating Molar Mass
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6. Chemical Composition(0)

Empirical Formula
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Molecular Formula
(0)

Mole Concept
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Mass Percent
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7. Chemical Reactions(0)

Chemical Reaction: Chemical Change
(0)

Balancing Chemical Equations (Simplified)
(0)

Solubility Rules
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Electrolytes (Simplified)
(0)

Molecular Equations
(0)

Types of Chemical Reactions
(0)

Complete Ionic Equations
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Gas Evolution Equations (Simplified)
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8. Quantities in Chemical Reactions(0)

Stoichiometry
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Limiting Reagent
(0)

Percent Yield
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Thermochemical Equations
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9. Electrons in Atoms and the Periodic Table(0)

Wavelength and Frequency (Simplified)
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Electromagnetic Spectrum (Simplified)
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Bohr Model (Simplified)
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Emission Spectrum (Simplified)
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Electronic Structure
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Electronic Structure: Shells
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Electronic Structure: Subshells
(0)

Electronic Structure: Orbitals
(0)

Electronic Structure: Electron Spin
(0)

Electronic Structure: Number of Electrons
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The Electron Configuration (Simplified)
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The Electron Configuration: Condensed
(0)

Ions and the Octet Rule
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Valence Electrons of Elements (Simplified)
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Periodic Trend: Metallic Character
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Periodic Trend: Atomic Radius (Simplified)
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Periodic Trend: Ionization Energy (Simplified)
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Periodic Trend: Electron Affinity (Simplified)
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Electron Arrangements
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The Electron Configuration: Exceptions (Simplified)
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10. Chemical Bonding(0)

Lewis Dot Symbols (Simplified)
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Ionic Bonding
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Covalent Bonds
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Lewis Dot Structures: Neutral Compounds (Simplified)
(0)

Bonding Preferences
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Multiple Bonds
(0)

Lewis Dot Structures: Multiple Bonds
(0)

Lewis Dot Structures: Ions (Simplified)
(0)

Lewis Dot Structures: Exceptions (Simplified)
(0)

Resonance Structures (Simplified)
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Valence Shell Electron Pair Repulsion Theory (Simplified)
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Electron Geometry (Simplified)
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Molecular Geometry (Simplified)
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Bond Angles (Simplified)
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Dipole Moment (Simplified)
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Molecular Polarity (Simplified)
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11 Gases(0)

Pressure Units
(0)

Kinetic Molecular Theory
(0)

The Ideal Gas Law
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The Ideal Gas Law Derivations
(0)

The Ideal Gas Law Applications
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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
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Solutions: Mass Percent
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Molarity
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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
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Alpha Decay
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Beta Decay
(0)

Gamma Emission
(0)

Positron Emission
(0)

Radioactive Half-Life
(0)

Measuring Radioactivity
(0)

4. Atoms and Elements

Ions (Simplified)

4. Atoms and Elements

Ions (Simplified): Videos & Practice Problems

Video Lessons Practice Worksheet

Ions (Simplified) Practice Problems

19 problems

Problem 1Multiple Choice

What is an ion?

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Problem 2Multiple Choice

Which of the following statements correctly describes how metals and nonmetals form ions?

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Problem 3Multiple Choice

If an atom loses 4 electrons, what will be the charge of the resulting ion?

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Problem 4Multiple Choice

How many electrons does boron lose to form a cation with a 3+ charge?

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Problem 5Multiple Choice

How many electrons does oxygen gain to form an anion with a 2- charge?

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Problem 6Multiple Choice

What does the atomic number of an element represent?

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Problem 7Multiple Choice

What happens to the charge of an atom when it gains electrons?

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Problem 8Multiple Choice

Why do ions tend to form a noble gas electron configuration?

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Problem 9Multiple Choice

An atom has 10 protons and 8 electrons. What is the charge of the ion?

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Problem 10Multiple Choice

What is the electron configuration of boron after losing 3 electrons?

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Problem 11Multiple Choice

What is the electron configuration of oxygen after gaining 2 electrons?

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Problem 12Multiple Choice

What does the mass number of an element represent?

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Problem 13Multiple Choice

What happens to the charge of an atom when it loses electrons?

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Problem 14Multiple Choice

Which of the following ions is isoelectronic with argon?

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Problem 15Multiple Choice

An atom has 12 protons and 10 electrons. What is the charge of the ion?

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Problem 16Multiple Choice

What is the charge of boron after losing 3 electrons?

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Problem 17Multiple Choice

What is the charge of oxygen after gaining 2 electrons?

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Problem 18Multiple Choice

What is the significance of the atomic number in ion formation?

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Problem 19Multiple Choice

What is the relationship between electron gain and the charge of an ion?

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Isotopes Practice Problems Atomic Mass (Simplified) Practice Problems

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