Introduction to the Periodic Table of the Elements
Learn about the elements of the periodic table and how they are organized.
Introduction to the Particle Theory of Matter
Learn about how the Particle Theory helps us understand matter.
What Causes Hot Things to Glow?
Getting electrons excited by heat can cause certain materials to give off visible light when heated - like filaments in light bulbs.
The Newest Elements on the Periodic Table
The periodic table was last updated in 2016 with four new chemical elements. What is a chemical element? What is the atomic structure of the newest chemical elements? How did they get their names?