CHEM-TO-GO LESSON 9: ORBITAL DIAGRAMS

CONVERSATION STARTER

Materials:1) Orbital diagram video notes and color-coded

periodic table2) Clean sheet of paper for additional diagrams3) Pencil

Practice of Electron Configuration

Write the full electron configuration and noble gas notation for the following:

1)Boron2)Nickel3)Strontium4)Iodine5)Barium6)Platinum

Illustrate your understanding of the concept by answering the following questions about each:

1) Number of electrons2) Number of energy levels3) Number of valence electrons

Collaborative Application

Students will apply knowledge in a predictable situation.

Important information about an atom’s electrons:1)Number of electrons2)Number of energy levels3)Number of valence electrons4)Number of unpaired electrons5)Number of empty sublevels on an energy level6)Number of empty orbitals in a sublevel

Collaborative Application

Five Minute Practice:

Draw the orbital diagrams for the

following elements:Chlorine and Titanium

Five Minute Practice:Who’s rule is broken in

these diagrams?

1.

2.

3.

1) Number of electrons2) Number of energy levels3) Number of valence electrons4) Number of unpaired electrons5) Number of empty sublevels on an

energy level6) Number of empty orbitals in a

sublevel

Assimilation of Knowledge

KEY IDEA: Two groups of elements on the periodic table BREAK aufbau’s principle regularly to achieve a more stable configuration.

Who are these rebels? Chromium family Copper family

Why? Full orbitals = STABLE ½ Full orbitals = ~ stable Empty orbitals = UNstable