If the requirements of classical electromagnetic theory that electrons in such orbits would emit electromagnetic radiation are ignored, such atoms would be stable, having constant energy and angular momentum, but would not emit any visible light (contrary to observation). According to classical mechanics, the Rutherford model predicts a miniature “solar system” with electrons moving about the nucleus in circular or elliptical orbits that are confined to planes. What causes the lines in these spectra? Why are the colors of the lines different? Suggest a reason for the observation that the spectrum of calcium is more complicated than the spectrum of hydrogen.īoth involve a relatively heavy nucleus with electrons moving around it, although strictly speaking, the Bohr model works only for one-electron atoms or ions. The spectra of hydrogen and of calcium are shown below. Intended for classroom and personal use ONLY.\( \newcommand\) Clipart and elements found in this document are copyrighted and cannot be extracted and used outside of this file without permission or license. Failure to comply is a copyright infringement and a violation of the Digital Millennium Copyright Act (DMCA). This product may not be distributed or displayed digitally for public view. Copying for more than one teacher, classroom, department, school, or school system is prohibited. This product is to be used by the original downloader only. Enns Resources:īe sure to follow my TpT store by clicking on the Follow Me next to my seller picture to receive notifications of new products and upcoming sales.Ĭopyright © Douglas Enns. Unit Review - Atoms and the Periodic TableĬonnect with More Science With Mr. Quiz - Element Groups of the Periodic Table Quiz - Element Names and Chemical Symbols (6 Quiz Bundle) Quiz - Drawing Bohr and Electron Dot Diagrams Worksheet - Elemingo or Element Bingo Game Worksheet - Mendeleev's Periodic Table of Elements Worksheet - Drawing Electron Dot Diagrams Unit Overview & Key Words - Atoms and the Periodic Table Unit PPT - Jeopardy Game: Atoms & the Periodic Table Review UNIT BUNDLE - Atoms and the Periodic Table You Might Also Like the Following Unit Resources: Physical Science - Matter and its Interactions - Structure and Properties of Matter Relevant NGSS Core Idea(s) Addressed by This Product: Download the full PDF preview to see EXACTLY what you are getting.This worksheet comes in 2 formats: a static PDF document and fully-editable WORD document.is a full answer key for Student Review (B) - Basic.is a full answer key for Student Review (A) - Advanced.is a basic review page that features a fill-in-the-blanks table that closely follows the content of the reading, which allows teachers to provide a more structured exercise for those students that need scaffolding.is an advanced review page that features a blank table that follows the format of the reading and allows students to write their own summary notes in paragraph of point form. Erwin Schrodinger and the quantum model.Ernest Rutherford and the nuclear model.John Dalton and the first atomic theory. Democritus and the idea of atoms (atomos).A 2-page reading that covers the following topics:.Pages 1-2 - History of the Atomic Model Reading: Worksheet - History of the Atomic Model.There is a review quiz that is designed to assess student understanding of the content of this reading.After showing the relevant PPT presentation slides to my students and viewing a brief video clip, I hand out this product for them to work on for the remainder of the lesson and for homework.I typically use this as a summary exercise designed to be a supporting document to my PPT on the atomic model.Review (B) is a more structured fill-in-the-blanks summary.
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