SCH4U - Chemistry 12 (2024-25) - A

SCH4U – Lesson Plan 1-3

Electron Configuration & Blocks of the Periodic Table

Lesson Big Idea:

Using the characteristics described by the quantum model of the atom as well as applying the Pauli Exclusion and Afbua principles, electron configurations for all of the elements can be determined and represented by electronic configurations and orbital diagrams.  Elements with similar electron configurations have similar characteristics and are organized as blocks of the periodic table.

Ministry Expectations:

C3.2: identify the characteristic properties of elements in each of the s, p, and d blocks of the periodic table, and explain the relationship between the position of an element in the periodic table, its properties, and its electron configuration

C2.2 use the Pauli exclusion principle, Hund’s rule, and the Aufbau principle to write electron configurations for a variety of elements in the periodic table [AI, C]

C3.2 describe the electron configurations of a variety of elements in the periodic table, using the concept of energy levels in shells and subshells, as well as the Pauli exclusion principle, Hund’s rule, and the Aufbau principle

Learning Goals:

By the end of this lesson you will:

• Understand the Afbau Principle
• Be able to draw Afbau Diagrams
• Apply the Afbau principle to writing electronic configurations and drawing orbital diagrams
• Understand the connection between electron configuration and blocks of the periodic table

Success Criteria:

I know I have achieved the learning goals when I:

• Can reproduce and explain an Afbau diagram
• Can write out electronic configurations and draw orbital diagrams for any element in the periodic table
• Can identify blocks of the periodic table by their placement within it, their electron configuration and their characteristics

Assessments:

• Check your understanding – Quiz (AfL)
• Check your understanding – Building an atom game (AaL)
• Embedded questions within learning activities (AfL)
• Journal (AaL)
• Assignment (AfL) 16 marks (16 marks: Knowledge & Understanding)