Chapter 22 – The Nuclear Atom

When students have completed this lesson they will find out:

• About the structure of atoms
• Evidence for the nuclear model of the atom
• The composition of the nucleus
• How to represent nuclides in the form
• The meaning of the term “isotope”

• About the background of artificial radiation
• How radiation is detected
• The nature of alpha, beta, and gamma radiations
• How to interpret nuclear equations that represent decay
• How radiation behaves in electric and magnetic fields
• About the ionizing and penetrating behavior of radiation
• How to calculate radioactive half-life
• How radioactive substances are used