Sodium gives electrons when reacting with a substance such as Chloride instead of sharing electron in a reaction such as the Hydrogen and Oxygen forming water molecules can be found in the type of bond in each example reaction. Before I can identify the contrasting characteristics of each reaction‚ I must first acknowledge the reason atoms react with one another in the first place. Each element has a certain number of valence electrons‚ an example being Sodium having one valence electron. When elements
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Introduction The purpose of this lab is to examine the motion of an electron‚ when it encounters a constant magnetic and electric field. We will also observe when the electric field and magnetic field will cancel each other out. This will lead to the electron having no net force acting upon it. By adjusting the values for the magnetic and electric fields‚ we will be able to check the different paths the electron follows. From this data we will be able to calculate the charge-to-mass ratio. Then
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The electron is a fundamental subatomic particle that carries a negative electric charge. It is a spin-½ lepton that participates in electromagnetic interactions‚ and its mass is less than one thousandth of that of the smallest atom. Its electric charge is defined by convention to be negative‚ with a value of −1 in atomic units. Together with atomic nuclei‚ electrons make up atoms; their interaction with adjacent nuclei is the main cause of chemical bonding. The name "electron" comes from
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cross section with a radius of 1.25 mm. (a) If the wire carries a current of 3.70 A‚ find the drift speed of the electrons in this wire. 3. An aluminum wire having a cross-sectional area equal to 4.00 10–6 m2 carries a current of 5.00 A. The density of aluminum is 2.70 g/cm3. Assume each aluminum atom supplies one conduction electron per atom. Find the drift speed of the electrons in the wire. 12. A lightbulb has a resistance of 240 when operating with a potential difference of 120 V across
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______________________________________ Date: ________________________ Student Exploration: Covalent Bonds Vocabulary: covalent bond‚ diatomic molecule‚ Lewis diagram‚ molecule‚ noble gases‚ nonmetal‚ octet rule‚ shell‚ valence‚ valence electron Prior Knowledge Questions (Do these BEFORE using the Gizmo.) 1. There are eight markers in a full set‚ but Flora and Frank each only have seven markers. Flora is missing the red marker‚ and Frank is missing the blue marker. What can
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Individual Assignment J.J. Thomson – Discovery of the electron Table of Contents Introduction 2 Biographical information 3 Background information 4 Experimental information 5 Impact 6 Conclusion 7 J.J. Thomson – Discovery of the electron Introduction The discovery of the electron is affirmative and justly credited to the English physicist Sir Joseph John Thomson (Weinberg‚ 2003). He had found and identified the electron in Cavendish Laboratory‚ Cambridge in 1897. From many
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Using a Compound Light Microscope Purpose: The purpose of this lab is to 1. Learn the parts of a compound light microscope. 2. The functions of those parts. 3. Proper use and care of the microscope. 4. Learn the technique of preparing wet-mount slides. Materials: * Compound light microscope * Soft cloth * Microscope slide * Cover slip * Dropper * Scissors * Newspaper Procedures: Part A. Care of the Compound Light Microscope. Step 1: Always carry
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Laboratory I: Problems 4 and 5 Deflection of an Electron Beam by an Electric Field and Deflection of an Electron Beam and Velocity By: John Greavu Partners: Shane Ruff‚ Hannah Eshenaur‚ & David Sturg Professor: John Capriotti TA: Barun Dhar July 19‚ 2013 OBJECTIVE: The objective of this lab was to scientifically determine the deflection of an electron from its original path due to its passing through an electric field as a function of the electric field strength (problem 4)‚ as well as its initial
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Deflection of an Electron Beam by an Electric Field Nicole N Lab Problem 1.4 – February 3‚ 2011 Problem Statement: We were asked to test the design of an electron microscope to determine how a change in the electric field affects the position of the beam spot. The goal is to find out how different variables‚ such as charge of the deflection plates providing a vertical electric field and initial velocity of the electron beam will affect the amount of deflection the electron beam experiences
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parts of the microscope 1. Stage The horizontal surface upon which the slide is placed is called the stage. The slide is held in place by spring loaded clips and moved around the stage by turning the geared knobs on the stage. Th stage has two perpendicular scales that can be used to record the position of an object on a slide. This is useful if you want to quickly relocate an object. 2. Coarse adjustment The coarse adjustment knob located on the arm of the microscope moves the stage
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