Lab 1: Radio and Light Waves Virtual Lab 1) How is the radiating electric field (or electromagnetic signal) produced when radio stations broadcast? Include a description of what is producing the signal as well as the reasoning behind how this could produce a signal. We know that electromagnetic radiation is produced by accelerating charges. In the radio transmitter‚ electrons oscillate up and down and are thus accelerating. An electron will exert a force on another electron when they are some
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Electron Configuration “Lab” Purpose The purpose of this lab was to explore how electron configurations vary around the periodic table. The lab also helped us examine the relationships between electron configurations and reactions. Analysis The first pattern we discovered was that the sum of the superscripts equaled the number of electrons in the atom. Then‚ we learned that as you travel across the periodic table (starting from hydrogen up to the element of interest) the superscript increases
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The Discovery Of The Electron The electron was discovered in 1895 by J.J. Thomson in the form of cathode rays‚ and was the first elementary particle to be identified. The electron is the lightest known particle which possesses an electric charge. Its rest mass is Me <approximately equal> 9.1 x 10 -28 g‚ about 1/1836 of the mass of the proton or neutron. The charge of the electron is -e = -4.8 x 10^-10 esu <elec trostatic unit). The sign of the electron’s charge is negative by convention‚ and
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Results A Test for glucose using Clinistix paper Sample Clinistix paper Original colour Final colour Glucose solution Distilled water B Test for reducing sugars using Benedict’s test Sample Mixture of Benedict’s solution and sample Observable change Glucose solution Distilled water C Test for starch using iodine test Sample Iodine solution Original colour Final colour Starch solution Distilled water D Test for lipids using grease spot test Sample
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Valence Electrons The valence electrons are the electrons in the last shell or energy level of an atom. They do show a repeating or periodic pattern. The valence electrons increase in number as you go across a period. Then when you start the new period‚ the number drops back down to one and starts increasing again. For example‚ when you go across the table from carbon to nitrogen to oxygen‚ the number of valence electrons increases from 4 to 5 to 6. As we go from fluorine to neon to sodium‚ the
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Electron Configuration Patterns WE CANNOT KNOW THE EXACT LOCATIONS OF ELECTRONS WITHIN ENERGY LEVELS‚ BUT WE CAN DESCRIBE PROBABLE REGIONS OF ELECTRON LOCATION. Our understanding of electron distribution is based on mathematical probabilities that result from knowledge about the behavior of charged particles in an atom: |a) | | |b) |
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Statement of findings: Conclusion: The Transport Department of Govt. of NCT of Delhi is entrusted with the responsibility of providing an efficient public transportation system‚ control of vehicular pollution‚ registration of vehicles in Delhi‚ issuance of Driving licences‚ issuance of various permits‚ collection of road taxes. The department also entrusted in policy-making‚ co-ordination‚ implementation‚ monitoring and regulatory functions of all the Transport related aspects of National Capital Territory
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energy saving of street lights with light depending resistor. Nowadays‚ human has become too busy and he is unable to find time even to switch the lights wherever not necessary. This can be seen more effectively in the case of street lights. The present system is like‚ the street lights will be switched on in the evening before the sun sets and they are switched off the next day morning after there is sufficient light on the roads. But the actual timings for these street lights to be switched on are
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Metallobiomolecules 2. Classification Metallobiomolecules 2.1. Transport and of to Storage Proteins 2.2. Oxygen binding Today scientists try to explore the chemistry basis behind the biological processes. As a result of this‚ new areas have evolved such as bioinorganic chemistry and bioorganic chemistry. In this section we will talk about an important concept in bioinorganic chemistry called “Metallobiomolecules”. Metallobiomolecules 2.3. Electron Transfer Proteins 2.3.1. Cytochromes 2.3.2. Iron-Sulphur
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Chapter 5: Electrons In Atoms A. Models of the atom i. The Development of Atomic Models Protons and neutrons make up a nucleus surrounded by electrons Rutherford’s model or theory ( figured electrons move around the nucleus) His theory didn’t explain why metals or compounds of medals give off characteristics of colors when heated. Also didn’t explain why the atomic model could not explain the chemical properties of elements ii. The Bhor Model Bohr proposed that an electron is found in specific
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