Joey Hajda

Welcome to Friendly Chemistry at

April Lessons


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Welcome to your Friendly Chemistry course for four months in 2014! We’re very glad you’ve chosen to use Friendly Chemistry to help your child learn basic chemistry. Traditionally, chemistry courses are thought to be “hard” and intimidating. We think you’ll find that learning chemistry with this guide to be just the opposite!

Our goal in this course is to provide a means of building a solid foundation of knowledge about chemistry. Should your students or children choose to continue their study, you can be confident knowing they have the “basics” to meet the challenges of an advanced chemistry course.

Let’s begin with an overview of the course. The course is divided into 12 lessons. Within each lesson there is a section of text followed by group activities, laboratory experiences, and worksheet-type practice pages. Each lesson culminates in a lesson test.

In addition, there are new video segments corresponding to each lesson—I have added these to the course for the first time in 2014. (A version of this course, without video, ran in 2012 on We suggest you view each video as you follow along with the text portion of each lesson.

The subjects we will cover in these 12 lessons are:

  • the definition of chemistry
  • the atomic theory
  • quantum mechanics (how the arrangement of electrons in an atom determines that element’s level of reactivity)
  • writing orbital, electron configuration notation, and dot notations
  • trends of families of elements of the periodic table, and
  • understanding how neutral atoms gain a charge

The course outline we will follow February through May:

February 3: Course Introduction

February 10: Lesson 1—Meet Chemistry

February 17: Lesson 2—Moving in a Little Closer

February 24: Lesson 3—Electron Arrangement

March 3: Lesson 4—Applying Quantum Mechanics

• Doo-Wop Board Cover is given with this lesson and applies to lessons 4-8

March 10: Lesson 5—Orbital Notation

March 17: Lesson 6—Electronic Configuration Notation

March 24: Off, catch up, or review

March 31/April 1: Lesson 7—Electron Dot Notation

April 7: Lesson 8—Relating Electron Arrangement to Reactivity

April 14: Lesson 9—Ionization Energy

April 21: Off, catch up, or review

Week of April 28–May 2: Lesson 10—Atom Size

May 5: Lesson 11—Ion Formation

May 12: Lesson 12—Determining Charges on Ions

May 19: Off, catch up, or review

End of semester and end of course.

As you begin this course, please let us know if you have questions.  We’re here to help you master the basics of chemistry!

Go to the February through April Friendly Chemistry Lessons 

Joey Hajda has had a love of science since he was a boy. His initial career choice was veterinary medicine, but after receiving his veterinary degree, he discovered that he loved teaching as much as he loved science. Consequently, he got a degree in education. His teaching career has now spanned almost 25 years and has included public school, community college, and homeschooled students—including his own ten children. He and his wife, Lisa, in addition to homeschooling their children, wrote Friendly Chemistry: A Guide to Learning Basic Chemistry. They enjoy sharing their enthusiasm for science with fellow homeschoolers.

For additional information regarding Friendly Chemistry, please visit or find us on Facebook.

*Please note that Friendly Chemistry’s copyright policy strictly prohibits making photocopies by any means of any portions of the student book or teacher’s guide other than photocopies of the test masters. Please email or call if you have questions regarding our copyright policy.

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Course transcript information


Upon successful completion of all 12 lessons in this course, including watching the videos with each class, your child will earn the equivalent of 0.5 credits of a high school science course.

— Joey Hajda

* Please be informed of your own state’s academic requirements.

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