Atomic Structure - Mastery Test

This is a 20 question test on the atomic structure which includes, questions on atomic number, atomic mass, mass number, isotopes, atomic history and the Bohr model. It is a two page test which should take the students about 30 - 45 minutes to complete. It is a comprehensive test on the atomic structure and history. The test is designed for chemistry students, but could be modified for physical science students.