importance of using models in science? (1.03; 2.01) 4. List the 5 postulates of Dalton’s Atomic Theory. (2.01) 5. Describe Crookes Experiment. (2.01) 6. Describe how Thomson’s work expanded upon Crookes. (2.01) 7. Explain Rutherford’s Gold Foil experiment and relate it to Thomson’s work. (2.01) 8. Describe Chadwick’s work in Chemistry. (2.01) 9. Describe the current model of the atom. (2.01) 10. What do we know about an atom if we know the atomic number
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I. Manhatten Project (C)before German & Japanese‚ Pearl Harbor opportunity‚ Japan already defeat‚ Hiroshima (70‚000)‚ Nagasaki (40‚000)‚ “complete destruction” “utter destruction” a. Through many see the bombing as immoral‚ the atomic bombings actually saved lives of both Japanese and U.S. people‚ weakened Japan who wasn’t as innocent as many believed‚ and ended the devastating WW II. II. Save many lives a. U.S.A. i. No invasion of Japan ii. Many casualties: battles
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have no boundaries for dating. During a high school education can be limited due to dating. A child can be dating in high school‚ but they might fall behind on their work and can not jump back. Having a date in high school means some good things as well too. A child will always have someone to go to football games and dances with. Dating in high school can both negatively and positively affect a high school experience. When my children starts dating‚ they need to follow my dating rules. first‚ the parent
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Isotopes and Atomic Mass It’s Vegium I. Purpose The purpose of this lab is to determine the average weights of each isotope of the “element” vegium‚ determine the relative abundance of isotopes of vegium‚ and calculate from experimental data the atomic mass of vegium. II. Apparatus Sample of vegium‚ balance‚ weighing cups III. Data Tables | |Beanium |Peaium |Cornium |Total
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Determination of the relative atomic mass of lithium Introduction: For this investigation I will determine the Relative atomic mass (Ar) by using two different methods. In the first method I will dissolve a piece of lithium of a known mass in water‚ I will then collect the hydrogen gas produced‚ which can be used to calculate the relative atomic mass of Lithium. In the second method I will titrate the resulting solution of lithium hydroxide with a known concentration of hydrochloric acid‚ this
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In a 1979 excerpt from his book‚ The Intelligent Woman’s Guide to Mating and Dating‚ clinical psychologist‚ Albert Ellis discusses the social relationship between males and females‚ and the differences between them. Ellis asserts it is a “fact that most males are much more interested in sex than love.” He urges women to accept men as who they are: less romantic‚ single-minded‚ and sexually demanding. Furthermore‚ he insists it is reasonable for a man to have these distinct manly traits and it would
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Determining substances contained in a mixture using qualitative analysis Introduction: The purpose of this lab was to determine the substances contained in a random mixture using qualitative analysis. Qualitative analysis is the analysis of a substance in order to ascertain the nature of its chemical constituents (Qualitative analysis). The substances that could be found were iron‚ cinnamon‚ corn starch‚ baby powder‚ copper‚ and strontium. A magnetism test was used to determine whether iron or
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nucleus is (pick one of the following) greater than; equal to; smaller than the number of protons in the nucleus of the atom. 6. The atomic number of potassium (3919K) is_19_. This means that a potassium atom has _19 protons and 19_ electrons. 7. What is the atomic mass of K? ___39________. 8. The atomic mass represents the number of _protons_ and _neutrons. 9. The isotope 14C differs from 12C in that 14C has (pick one of the following) more; less; same) neutrons. 10. Electrons are arranged in
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Title: Calculating the Atomic Mass of “Pennium” Purpose: The purpose of this lab is to calculate the atomic mass of “pennium” using pennies made before 1982 and pennies made 1982 or after. Hypothesis: The atomic mass of the pennium will be the average of the average masses of a pre-1982 penny and a post 1982 penny. Procedure: 1. Obtain a bag of pennies 2. Determine the total number of pennies in the bag. Record the value. 3. Sort the pennies by date into 2 piles. One pile should consist
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