Trends in the Periodic table March 24‚ 2013 Four trends that will be covered: Atomic size Ionization Energy Electronegativity Electron Affinity Each of these has a group trend and a period trend A group trend refers to what is happening with the atom as you travel up or down a column of the periodic table. A period trend refers to what is happening with the atom as you move left or right across a row of the periodic table Atomic Size When discussing an atom’s size‚ usually the
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Organic Chemistry‚ Fourth Edition Janice Gorzynski Smith University of Hawai’i Chapter 1 Lecture Outline Prepared by Layne A. Morsch The University of Illinois - Springfield Copyright © 2014 The McGraw-Hill Companies‚ Inc. Permission required for reproduction or display. 1 Bonding • Bonding is the joining of two atoms in a stable arrangement. • Through bonding‚ atoms attain a complete outer shell of valence electrons (stable noble gas configuration). • Atoms can form either ionic or covalent
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primaryrx.com/pdf/C-PHEN%20DM%20DROPS.pdf 1 Chapter 15: Benzene and Aromaticity Introduction: • All organic compounds can be derived into two broad classes 1. Aliphatic compounds Nonaromatic hydrocarbons such as alkanes‚ alkenes or alkynes 2. Aromatic compounds A series of cyclic unsaturated compounds with unusually high stability • The properties and reactions of aromatic compounds are exemplified / demonstrated by the properties and reactions of benzene (the “parent” aromatic molecule)
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|Chapter 5: | |Structure and Preparation of Alkenes. | |Elimination Reactions | Summary Alkenes contain the C=C functional group which can be prepared by 1‚2-elimination reactions such as: • dehydration of alcohols (- H2O) or • dehydrohalogenation of alkyl halides (- HX). Zaitsev’s rule indicates that the preferred product is the more highly substituted
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Natalie Blenker Mrs. Harris I.B. Theatre HL2 Period: 7 March 1‚ 2012 A research investigation on what specific skills an actor would need learn in order to convincingly portray the role of Silvio in Carlo Goldoni’s‚ A Servant of Two Masters. Carlo Goldoni wrote the comedy “Arlecchino servitore di due padroni”‚ which translates into modern English as The Servant of Two Masters‚ a commedia dell’Arte-style play. The performers of Commedia were often illiterate‚ and as such there was
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Audit & Investigation AQ002-3.5-2-AINV-T 15-Jun-12 WASEED AHMED LECTURER: MR. MEGAT ABDULLAH MEGAT MAHMUD Table of Contents Different roles of internal and external auditors. 4 Internal auditors: 4 External auditors: 4 Identify the benefits in forming an audit committee. 6 Evaluate the strengths and weaknesses of MPL’s control environment: 7 Control Environment: 7 a. Integrity and Ethical Values:
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nvestigation into the Factor of Light and Dark Affecting Woodlice Predictions It was expected that a woodlice would prefer a damp‚ dark‚ but moderately warm surrounding. Normally one would expect to find slaters under logs or concrete slabs in one’s garden. Under these large objects‚ the sun cannot reach directly; therefore it is darker‚ damper and colder than the surroundings. Nevertheless‚ in winter we do not see woodlice crawling around very often‚ and‚ also at night‚ it may
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Hydrogen is recognized as the simplest and lightest chemical element in the periodic table; even though it is identified as one of the top elements in abundance in the world (consisting of 0.9 percent of the total mass on earth)‚ it is considered to be the most abundant element in the entire universe. It is a gaseous element with the atomic symbol being H. It is usually categorized under the first group of the periodic table known as the alkali metals. It contains only one electron that revolves
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CHEM 3305 - 001 Organic Chemistry 1 Dr Michael Findlater Spring Semester‚ 2013 Stereochemistry • Stereochemistry refers to the three-dimensional structure of a molecule. • As a consequence of stereochemistry‚ apparently minor differences in 3D structure can result in vastly different properties. • We can observe this by considering starch and cellulose‚ which are both composed of the same repeating unit. Stereochemistry of Starch and Cellulose Figure 5.2 • In cellulose
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possibly Acacia rigidula‚ trees that grow in West Texas. Methamphetamine and regular amphetamine were long thought to be strictly human-synthesized‚ but Acacia trees contain these and numerous other psychoactive compounds (e.g.‚ mescaline‚ nicotine‚ dimethyltryptamine)‚ and the related compound β-phenethylamine is known to occur from numerous Acacia species. Diagrams Health Concerns Physical effects can include anorexia‚ hyperactivity‚ dilated pupils‚ flushing‚ restlessness
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