The different electron energy levels caused in hydrogen cause these lines in the spectrum to be produced in this way because the wavelengths that are released when the electron move back to the ground state is specific and it varies accordingly. 2. Into which energy level are electrons dropping into to make these visible lines? The electrons are dropping back to the ground state which is the bottom most energy level to makes these visible lines. 3. What happens when the electrons drop into the
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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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Study Guide 1. Write down the electron configuration for the following atoms (see page 135 in your textbook): Mg Ne Zn 2. Which elements have the following electron configurations? a. 1s22s2 b. 1s22s22p63s23p1 3. Sketch the shape of the following orbitals: s p d 4. Define the term “quantum.” 5. Using the diagram of the atom‚ on the right‚ identify the following: a. Which arrow(s) indicate that electrons absorbed energy? b. Which arrow(s) indicate that electrons lost/emitted energy as light
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of the electron transport chain in cellular respiration. In your explanation‚ discuss and identify key molecules involved in this process and explain their relationship which each other in terms of how they contribute to the main cellular purpose of this process. Electron transport chain plays a key role of in the production of oxygen in cellular respiration. ETC uses many enzymes located on the inner mitochondrial membrane during the production of oxygen. The source of these electrons are NADH
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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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Introductory Chemistry‚ 2e (Tro) Chapter 9 – Electrons in Atoms and the Periodic Table True/False Questions 1) When the elements are arranged in order of increasing number of protons‚ certain sets of properties recur periodically. 5) A particle of light is called a packet. 9) Ultraviolet light produces suntans and sunburns. 13) Electrons behave like particles and we can describe their exact paths. 17) The ground state is when an electron in an atom is excited into the lowest possible vacant orbital
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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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greater understanding of the universe. Specifically‚ we gain better understanding of how the structure of the atom works‚ as we study the interaction of small particles which gives us a better understanding of the world. The data which we have on how electrons and atoms interact is gathered mostly on observations alone. For example‚ the properties of hydrogen atoms can distinguish between the different tissues and muscles within the human body‚ this is because the human body consists of 63% of hydrogen
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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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