Lesson Plan Day: 41             10/21

Teacher: P. Kirk

Subject: Science

Course: Chemistry


Structure of the nucleus and the "loss" of mass caused as nuclear matter is converted to binding energy.

Stable and unstable ratios of protons and neutrons. 

How nuclear reactions affect the nucleus of an atom. 


HS.PS1.C: Nuclear Processes
Nuclear processes, including fusion, fission, and radioactive decays of unstable nuclei, involve release or absorption of energy. The total number of neutrons plus protons does not change in any nuclear process.

Section 21.1: Nuclear reactions affect the nucleus of an atom.


Define the structure of the nucleus of an atom. Define and calculate binding energy. Use the Isle of Stability to determine stable and unstable ratios of protons and neutrons. Using nuclear notation to explain the changes in a nuclear reaction.  and the "loss" of mass caused as nuclear matter is converted to binding energy. Determine to products of nuclear reactions and nuclear decay.


nucleon, nuclide, mass defect, binding energy, shell model, magic number, nuclear reaction, transmutation


S will read and take notes on 21.1 from PPT, text and available printable notes.  S will work alone or in small groups to complete Study Guide 21.1. S will examine the resource Radioisotopes. S will begin Chapter 21 Key Terms.


T will go over 21.1 PPT and monitor students as they work to complete Study Guide 21.1 and Key Terms. T may point out notable radioisotopes and uses to peak S interest and familiarity with the concepts and vocabulary. T will copy and distribute Study Guide 21.1 and the Schedule/Key Terms pages along with Radioisotopes resource.


21PPT, online printable notes, 21.1 Study Guide, 21 Schedule, 21 Key Terms, Radioisotopes resource page, periodic tables and calculators.  


Students will submit for grading the 21.1 Study Guide and define the Key Terms for the chapter. Formative assessment will be done as T monitors and assists students.


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Last modified: 08/13/19