valence+electrons

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Lesson Plan

__Title__: Valence Electrons

__Description__: This lesson will teach students how to determine number of valence electrons.

__Duration__: 45 minutes

__Learning Objectives__: The students will be able to determine the number of valence electrons based on the electronic configuration.

__Materials__: Periodic Table or Reference Table – Chemistry in the Physical Setting

__Step by Step Procedure__:
 * 1) Show an example in the PowerPoint presentation.
 * 2) Give student an atom to work on: Calcium
 * 3) Refer to the reference table for the atomic number
 * 4) Also direct the student to use the table on filling orbitals

Questions: __Grade Level(s)__: 12
 * 1) Ask students to show their work on the board.
 * 2) Point out to the students that the periodic table also shows the number of valence electrons.
 * 3) Students do the worksheet.
 * 1) How do we determine the number of valence electrons?
 * 2) How does the periodic tell us the number of valence electrons of the atom?

__Support Materials__: Periodic Table, Reference Table, lcd projector, laptop.

__Related Standards__: Standard MST4: Science

Students will understand and apply scientific concepts, principles, and theories pertaining to the physical setting and living environment and recognize the historical development of ideas in science. Submitted by: Dioso A. Torre