Back to Atomic Structure

Lesson PreviewLesson 5 of 8 in this unit

2.5 Overview of the Periodic Table

Part of Atomic Structure in Chemistry: Basic. Read the opening section, then create a free account for the full interactive lesson, practice, and progress tracking.

Start free

What Is the Periodic Table?

The periodic table is a chart that organizes all known elements based on their properties. It was first developed by Dmitri Mendeleev in 1869 and has become one of the most important tools in chemistry. The table arranges elements by their atomic number (the number of protons in an atom) and groups them based on similarities in their chemical behavior.

In this unit

8 lessons

  1. 2.1Introduction to AtomsPreview lesson
  2. 2.2Subatomic ParticlesPreview lesson
  3. 2.3Atomic Number and Mass NumberPreview lesson
  4. 2.4IsotopesPreview lesson
  5. 2.5Overview of the Periodic TableThis lesson
  6. 2.6Introduction to Electron ArrangementPreview lesson
  7. 2.7Atomic Structure Diagrams & The Bohr ModelPreview lesson
  8. 2.8Ions and ChargesPreview lesson

Continue the full lesson in Stellar

Create a free account to unlock the remaining sections, checkpoints, course practice, and progress tracking for Chemistry: Basic.

Start free