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    X Ray Scans

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    absorb the extra energy given by the photon. In order for the energy to be absorbed‚ the difference in electrons must be the same; there must be positions for extra electrons in the orbitals of the atom. X-ray photons have a large amount of energy; only large atoms (where there are larger energy differences between orbitals) are able to absorb the energy. It is unlikely for smaller atoms to absorb this much energy. Our body tissues consist mainly of smaller atoms so x-ray photons are not absorbed. The

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    Discussion no. 2 The Nomenclature of Inorganic Compounds Discussion no. 3 The Periodic Table of Elements Sta. Maria‚ Yza Suaco‚ Trisha Marie T. Teves‚ Joan Marie Vale‚ Kate IN-9 Group 9 I. Introduction Representing molecules as images allows us to impart a great deal of information concerning molecular structure. But these molecules can also be named‚ and there are occasions when this is more convenient than drawing a picture. In the early days of chemistry‚ the list of known compounds

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    Chemistry Study Guide

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    1. What is Chemistry? The study of the composition‚ structure‚ and properties of matter. The processes that matter undergoes and the energy changes that accompany these processes. 2. What is the formula for density? If I give you the density of a substance and the volume‚ you should be able to tell me the mass… Density = Mass/Volume 3. Compare and contrast intensive and extensive properties. Give an example of each. Extensive properties depend on the amount of matter that is present. Such

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    Chemistry

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    LEARNING OUTCOME : : : : Organic Chemistry I CHM 3201 4 (3+1) 160 hours per semester : : None At the end of the course‚ students will be able to: 1. Define and explain the basic concepts in organic chemistry such as electronegativity‚ orbital hybridization‚ nomenclature‚ resonance and isomerism‚ as well as organic reactions mechanisms (C4‚ CTPS) 2. to conduct experiments that demonstrate the characteristic reactions of important functional groups of organic compounds (P4) 3. interact and

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    Cosmos – an alternative name for the universe Meridian – a half circle extending from your horizon (altitude 0) due south through your zenith to your horizon due north. Zenith – the point directly overhead‚ which has an altitude of 90 degrees. Latitude –The angular north-south distance between Earth’s equator and a location on Earth’s surface. Longitude – The angular east-west distance between the prime meridian (which passes through Greenwich) and a location on Earth’s surface. Speed – The

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    The Father of Astronomy

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    difference between them? The geocentric model was developed by Greek philosophers and was accepted for centuries. This model places the Earth at the orbital center of the universe with all the stars and planets circling around it. Geocentric actually means ‘Earth-centered’. The heliocentric model‚ which means ‘sun-centered’‚ places the Sun in the orbital center of the universe with all planets‚ including earth‚ circling around the Sun. This new model gradually replaced the geocentric model. It changed

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    www.jntuworld.com Satellite Communications Reference book: Satellite Communications‚ 3rd ed. Dennis Roddy McGraw-Hill International Ed. www.jntuworld.com www.jntuworld.com 1.1 Introduction Features offered by satellite communications ‡ large areas of the earth are visible from the satellite‚ thus the satellite can form the star point of a communications net linking together many users simultaneously‚ users who may be widely separated geographically ‡Provide communications links

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    Halley's Comet

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    short-period comet‚ one with an orbit lasting 200 years or less. This contrasts it with long-period comets‚ whose orbits last for thousands of years. Most short-period comets‚ those with orbital periods shorter than 20 years and inclinations of 20–30 degrees or less‚ are called Jupiter family comets. Those like Halley‚ with orbital periods of between 20 and 200 years and inclinations extending from zero to more than 90 degrees‚ are called Halley type comets. Only 54 Halley-type comets have been observed

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    Lunar Eclipse

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    Earth‚ and Moon are aligned (in "syzygy") exactly‚ or very closely so‚ with the Earth in the middle. Hence‚ a lunar eclipse can only occur the night of a full moon. The type and length of an eclipse depend upon the Moon’s location relative to its orbital nodes. Unlike a solar eclipse‚ which can only be viewed from a certain relatively small area of the world‚ a lunar eclipse may be viewed from anywhere on the night side of the Earth. A lunar eclipse lasts for a few hours‚ whereas a total solar eclipse

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    when —SH is adsorbed to the Au surface; the hydrogen atom is dissociated and the strong Au—S covalent bond is formed subsequently. The electronic configuration of the palladium Pd(0) is represented by [Kr]4d105s0 [72]. We observe that the latest orbital 5s0 is free of electrons and it can accept two electrons‚ which can be provided by the free electronic doublet of deprotonated nitrogen atom of 2MBI molecule. This is in order to allow to Pd atom to have the stable configuration as [Kr]4d105s2. This

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