Ch 2: Basics of the Atom

About This Chapter

Watch short videos on atomic nuclei, electron shells and isotopes, and take the multiple-choice quizzes that follow to measure your understanding of these atomic structure basics.

Basics of the Atom - Chapter Summary and Learning Objectives

Take advantage of our instructors' expertise to develop your understanding of the fundamental units of matter. Illustrated videos can help you visualize the placement of an atom's subatomic particles and wrap your head around what's involved in calculating an element's atomic mass. Topics of instruction include:

  • Properties of subatomic particles
  • Valence levels in the electron shell
  • Isotopes of an element

Video Objective
The Atom Explore the characteristics of protons, neutrons and electrons. Study these subatomic particles' organization in and around the atomic nucleus.
The Electron Shell Examine the relationship between an atom's energy level and the number of electrons in its electron shell. Learn how valence levels are used to group elements in the periodic table.
Isotopes and Average Atomic Mass Discover the connection between an element's isotopes and its average atomic mass.

Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
Not Taken
Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
Not Taken

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