In this atomic number and mass quiz worksheet, students complete an on-line quiz, clicking on questions and matching answers, scoring 1 point for each correct answer. A printed version is available.

Explore and control the building blocks of atoms! Physical science superstars add and remove subatomic particles to create atoms and ions with an easy-to-use interactive. An alternate activity includes an assignment that focuses on the...

In this chemistry worksheet, students read about atoms, their charges, and their parts; protons and neutrons. They examine how to determine atomic weight by looking at an example. They work online as they practice finding the atomic...

A study of the periodic table of elements doesn't have to be elementary! Deepen understanding of the building blocks of chemistry with an interactive periodic table. At first sight, the table looks like a standard reference page, but a...

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.

An interactive periodic table of elements. Click an element to view a detailed description. Click the flags at the top to choose your language: English, French, Spanish, Dutch, and German.

An interesting and useful tool to practice recognition/calculation of atomic number, mass, and number of neutrons, electrons, etc. Can be used with all elements.