We will wrap up our conversation about atomic theory and begin diving deeper into isotopes today.


  • Understand that atoms of an element may have different masses
  • Write isotope names and symbols
  • Calculate average atomic mass
  • Interpret a mass spectra


  • Week 8 Reflection
  • Turn in Exam 2 Metacognitive Survey
  • Turn in 3.01a Practice
  • Complete and Turn in your first draft of 3.02a (by Sunday night)
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