Unit 3 Atomic Structure and Unit 4 Periodic Properties

Unit 3 Atomic Structure and Unit 4 Periodic Properties Understanding By Design – Backwards Design Process (Developed by Grant Wiggins and Jay McTighe, 2002)

Stage 1 – Desired Results Content Standard(s):  Strand II: The Content of Science  Standard I (Physical Science): Understand the structure and properties of matter, the characteristics of energy, and the interactions between matter and energy.  Benchmark I: Understand the properties, and underlying structure, and reactions of matter.  Benchmark III: Understand the motion of objects and waves, and the forces that cause them. Understanding (s)/goals Essential Question(s): Students will understand that:  What was Dalton’s theory of the  Atomic structure and the forces structure of matter? involved (strong force, electrical  What are three subatomic forces). particles?  How to make predictions about  What properties can be used to properties of elements using the compare protons, electrons, and periodic table and the elements’ neutrons? valence electrons.  How are atoms of one element  The characteristics of elements in different from atoms of other different regions of the periodic elements? table.  What is the difference between two isotopes of the same element?  What model do scientists use to describe how electrons behave in atoms?  What is the most stable configuration of electrons in an atom?  How did Medeleev organize the elements in his periodic table?  What evidence helped verify the usefulness of Mendeleev’s table?  How is the modern periodic table organized?  What does the atomic mass of an element depend on?  What categories are used to classify elements on the periodic table?  How do properties vary across a period in the periodic table?  Why do the elements in a group have similar properties?  Student objectives (outcomes): Students will be able to: Students will know:  Compare mass and charge of subatomic particles.   Describe how the charges and forces act together to create a stable atomic structure.  Determine the oxidation number of ions.  Identify metals, nonmetals, transition elements, noble gases, alkali metals, alkaline earth metals.  Estimate ionization energy and reactivity as a function of location on the periodic table. Stage 2 – Assessment Evidence Performance Task(s): Other Evidence:  Periodic Table Scavenger Hunt  Atomic Mass Worksheet  Periodic Paint Chip Quick Lab  Disappearing Elements LDC (Element Poster and story).  Periodic Table Quiz  Chapter 4 & 5 Test Stage 3 – Learning Plan Learning Activities:

 Notes over chapter 4 (outline format)  Lecture over structure of atom.  Modeling an atomic orbital activity  Color periodic table by groups  Read article “20 Things You Didn’t Know About the Periodic Table” by Rebecca Coffey. Practice cognitive note taking. Write a paragraph describing the periodic table to someone who has never seen it.  Chapter 4 & 5 Study Guide.