Men and Women of the Atom

A slideshow looking at the contributions of scientists over time to our understanding of atomic theory. Looks at models of the atom developed by Democritus, John Dalton, J.J. Thomson, Ernest Rutherford, Niels Bohr, and James Chadwick, as...

Demonstrate the particle theory of matter to high school scientists with an engaging experiment that allows them to visually see the results as substances change from one state to another. The class concludes with a discussion about how...

This PowerPoint provides a complete recap of all the information needed for a unit on elements and the periodic table. The seventy slides cover the basic notation of elements, energy levels and ionization energies. The trends in the...

In a well-prepared Jeopardy-style game, your chemisty class can review the periodic table. Questions cover the element groups, some history, atomic number, atomic and ionic radii, electronegativity, and the shielding effect. What a fun...

Atomic theory, a periodic table, and a place to practice making atom models without having to draw every proton, neutron, electron, and orbital! This resource is colorful, visually pleasing, and easy to use. 

Don't underestimate the power of a driven mother. Learn how Mendeleev's mother helped him enter college and how she passed her passion to her son, helping him to believe in his theories. Discover the contributions he made to our current...

JJ Thomson discovered atoms are made up of things, which he called electrons. The video in the Vertasium playlist explains Thomson's model of the atom, known as the plum pudding model. It presents the new knowledge Thomson wanted to...

Seeing is believing! But, how can something as tiny as an atom be made visible? Explore the history of the atom with a video from the American Chemical Society's Reactions playlist. Content includes early concepts of the atom, as well as...

This is a tremendous overview of the tiny atom. Journey through the history of human understanding of this basic building block of matter. Examine each of the sub-atomic particles in detail: neutrons, protons, electrons, quarks. Peruse...

Learn about the models of the atom that have been proposed throughout history. Presents Democritus, John Dalton, J.J. Thomson, Ernest Rutherford, Niels Bohr, and the modern theory of the atom. Sections are accompanied by journal...