11.1. Radioactivity http://www.ck12.org
Apply Concepts
- Assume that an isotope has 83 protons and 83 neutrons. Is it radioactive? Why or why not?
Think Critically
- Explain why elements with more than 83 protons have only radioactive isotopes.
Points to Consider
In this lesson, you read that unstable nuclei emit particles and energy.
- What type of particles do you think unstable nuclei emit?
- What form of energy do you think these nuclei give off?