Is your class in a quandary over quantum numbers? Change things up by adding games to the mix! Science scholars discover the shape, number of electrons, and number of orbitals in the s, p, and d sub-shells using an interactive.

Tired of blowing up countless balloons to illustrate orbital shapes around an atom? Give your lungs a break and use an interactive instead! Learners observe s, p, d, and f orbitals through the first four energy levels using hydrogen as a...

For this online interactive history worksheet, students respond to 10 short answer and essay questions about the accomplishments of Max Plank. Students may check some of their answers on the interactive worksheet.

Use this exercise to review the use of and understanding of quantum numbers.

Explore the properties of quantum particles bound in potential wells, and see how the wave functions and probability densities that describe them evolve (or don't evolve) over time.

Using a Java applet, sets of atomic orbitals are compared with different quantum numbers in order to compare the orbital sizes.

View the approximate locations of electrons in valence shells 1s through 4f.