Chapter 3: Isotopes Pack a Punch

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START HERE: Pre-Viewing Brainbuilders

  • Critical Thinking Question: The so-called alpha particles released by large radioactive elements such as uranium are helium nuclei consisting of two protons and two neutrons. Which has higher energy, (1) an uncharged helium atom or (2) an alpha particle and two separate electrons? Is it kinetic energy or potential energy that distinguishes to two systems. Why?                                                                                              See Answer.
  • Watch: Fukushima Iodine 131 global radioactive spread on world map animation

               What do you know about Radioactivity? As you watch, brainstorm a list of what you know.


AFTER THE VIDEO: Check Your Comprehension

Looking for Isotopes

Compare what you know now to your brainstorm list.

Chapter 3 Learning Video: Isotopes Pack a Punch