In this isotopes learning exercise, students review mass number, molecular notation, electron attraction, and electron orbits. This learning exercise has 5 matching and 5 short answer questions.

In this isotopes, molecular notation, and electron orbits activity, students read selections pertaining to isotopes, mass number, molecular notation, electric attraction, and electron orbits. In addition, students complete 11 short...

For this atom worksheet, students read about the model of the atom developed by Neils Bohr. Students complete 2 short answer questions based on what they read.