Lesson Plan : The Structure of an Atom

Teacher Name:
 Ms. K. Eure
 Grade 7-8

 Atomic Structure
 Atom: The smallest particle into which an element can be divided and still be the same substance. Proton: The positively charged particle of the nucleus. Neutron: The particles within the nucleus that have "no charge" or are said to be neutral. Electron: The negatively charged particle found in all atoms. Electron Cloud:The regions inside an atom where electrons are likely to be found. Quantum Mechanics: A theory of the mechanics of atoms, molecules, and other physical systems that are subject to the uncertainty principle.
 TSWBAT: 1. Describe the historical development of the concept of the atom and the contributions of Dalton, Thomson, Rutherford, and Bohr. 2. Use the Bohr model to differentiate among the three basic particles in the atom (proton, neutron, and electron) and their charges, relative masses, and location. 3. Compare the Bohr atomic model to the electron cloud model with respect to their ability to represent accurately the three-dimensional structure of the atom.
 To investigate and understand the modern and historical models of atomic structure a. the contributions of Dalton, Thomson, Rutherford, and Bohr in understanding the atom. b. the modern model of atomic structure.
 Interactive notebook, MPC-Cart, Unitedstreaming Video:Elements of Chemistry-Atoms:The Building Blocks Of Matter, Video Quiz Worksheet, Graphic Organizer:The Atom
 TSW: 1. Complete Bellringer(SOL Released Test Item #36)Spring 04 A proton has which of the following charges? a. negative b. neutral c. positive d. magnetic 2. Students will then discuss bell ringer and discuss why other answer choices are incorrect.
 The teacher will give direct instruction on the three subatomic particles that were discovered in the Bohr model of atomic structure and give definitions for each. The student will then be given a graphic organizer(illustration of an atom).
 Students will be asked to label their graphic organizer/illustration of the atom.
 Use of graphic organizer/illustration of the atom United Streaming Video
Checking For Understanding:
 Students will be given a Video Quiz in which they will answer while viewing the unitedstreaming video.
 Exit Card: SOL Released Test Item #25 (Spring 04) Which of these belongs in the outermost energy level of an atom? a. electrons b. protons c. neutrons d. photons

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