Chemistry - College Prep

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Chemistry – College PrepItalics reflect 21 st Century Skills implementationHow are various atoms pictured and symbolized?How can the mass of a sample of an element be related to the number of atoms present?Students will know . . . .Historical experiments of Crookes, JJThomson, Millikan, and RutherfordThe parts of the atom, their charge,location, relative massThe usefulness of the mole in convertingbetween mass and number of atomsStudents will be able to . . . .Describe the lab setup, lab results, what that toldus about electrons, and the logic behind thosedescriptions for Crookes’s experimentDescribe the lab setup, lab results, and what thattold us about electrons for JJ Thomson’sexperimentDescribe the lab setup, lab results, and what thattold us about electrons for Millikan’s experimentDescribe the lab setup, lab results, what that toldus about electrons, and the logic behind thosedescriptions for Rutherford’s experimentDraw vectors to represent the forces in the aboveexperimentsDifferentiate among atomic number, mass number,atomic mass, and atomic weight.Determine the number of protons, neutrons, andelectrons in an indentified isotope.Utilize mass number as a rough idea of mass anddescribe why it is only roughCalculate the atomic weight of an elementutilizing internet sourced dataDescribe why some radioactive isotopes allow adefinitive atomic weight calculation and others donot.Calculate among moles, grams, and number ofatoms utilizing Avogadro’s Number and atomicweights.Calculate the ability or lack thereof to determinethe moles, grams, and number of atoms for a“mystery element” (given one of those threevariables)Performance Tasks/Product(s):Moles, Grams, and Carbon Atom-Meter labIn-Class/homework problemsKey Evaluation Criteria/Rubric Titles:Are the historical experiments on atomic structure associated with the correct experimenter, labsetup, lab results, knowledge of atoms gained, and how the data led to that knowledge?Are isotopes properly accessed for number of subatomic particles, their location, and theconsequences of those facts?Are inter-conversions between grams, moles, and number of atoms correct?Problem solve/Access & Analyze School-wide RubricOther Evidence:Revised 2009Contributor: Jim DanielsProperty of RSD #178
Chemistry – College PrepItalics reflect 21 st Century Skills implementationTests:Chapter 3 testRecommended Quizzes:Elements quizRecommended ClassworkPulling on students to demonstrate forcesRole playing aspects of Rutherford’s experimentsIndividually assigned element’s atomic weight calculationInClass problemsRecommended HomeworkSyllabus with 23 assignmentsStudent Self Assessment:Students are taught to self assess numerical answers for appropriate size and unitsKey Learning Activities:Logical, fact, and data driven class discussionsXeroxed thinking activitiesPictures of piles of chemicals to assist in understanding grams to and from moles problemsIn-Class/homework problemsRevised 2009Contributor: Jim DanielsProperty of RSD #179
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Chemistry - College Prep

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