Lesson Plan: Electron Shells Chemistry • 7th Grade
This lesson plan includes the objectives, prerequisites, and exclusions of the lesson teaching students how to use electron-shell diagrams to identify elements and describe how electrons are arranged in atoms and ions.
Objectives
Students will be able to
- recall how the arrangement of the periodic table relates to the maximum number of electrons found in each shell,
- use the electron-shell model to assign a simple electron-shell configuration to an atom or ion,
- interpret shell diagrams in order to identify potential atoms and ions,
- explain the relative stability of the shells in order to correctly fill electron shells with electrons in the correct order.
Prerequisites
Students should already be familiar with
- the structure of atoms.
Exclusions
Students will not cover
- quantum numbers,
- energy sublevels and orbitals,
- the buildup of electrons in shells,
- the significance of the noble gas electronic structures,
- the distribution of electrons in s, p, and d orbitals.
