smallest part to the largest. On the chemical level: atoms make up elements. Each element has a specific number of electrons that orbit the nucleus. In the center of the element, the nucleus has protons and neutrons. The number of protons in an element is always equal to the number the electrons. The number of neutrons may vary to make isotopes of that element. Elements come together to give up, accept or equally share electrons to make molecules. The smallest part of an organism is a cell. Some single-celled
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nitrogen (N2) in the atmosphere is converted into ammonium (NH4). Atmospheric nitrogen or molecular nitrogen (N2) is relatively inert: it does not easily react with other chemicals to form new compounds. The fixation process frees up the nitrogen atoms from their diatomic form (N2) to be used in other ways. Nitrogen fixation, natural and synthetic, is essential for all forms of life because nitrogen is required to biosynthesize basic building blocks of plants, animals and other life forms, e.g.
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The Holographic Principle Andrew J. Birk Jr. Argosy University Page 1 Abstract The holographic principle; a seemingly abstract idea almost out of reach from the mentality of the average person that suggests the entire basis of existence is merely illusory images. William Blake, the early 18th century English poet in Auguries of Innocence made allegory to this notion: "To see the world in a grain of sand
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How Acid Affects The Rate Of Corrosion Cars and bikes are good examples of strong steel. Steel can be affected by water because the main element in steel is iron. Iron and another element called oxygen combine easily to make iron oxide. Iron oxide is also known as the red and brown substance called rust. Rust is known for turning into a different, weaker material than the original steel that it once was. When rust appears it becomes a huge problem for people because most everyday things they
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Introduction Pharmacology of Advair Diskus Fluticasone Propionate (FP), a component of Advair Diskus, is a corticosteroid primarily used in the treatment of asthma, allergic rhinitis (AR), or chronic obstructive pulmonary disease (COPD).1,2,3,4 In patients with allergic rhinits, is it most often used intranasally, falling under the class of “intranasal corticosteroids”, or INS.3 However, in the case of asthma, the drug is classified as an “inhaled corticosteroid” or ICS.5 Typically short-acting
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WATER AS OUR NATURAL RESOURSE There are more than 326 million trillion gallons of water on Earth. Less than 3 % of all this water is fresh water and of that amount, more than two-thirds is locked up in ice caps and glaciers. With so much water around it seems like there is enough to see us through for millions of years. But did you know that even water, which seems to be in abundance, might one day become scarce? Each time you throw something as garbage, think of where it will finally end up. Whether
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isotopes of chlorine: 35Cl and 37Cl. INTRODUCTION One of the areas being investigated in Quantum Chemistry is the vibrational and rotational aspects of a diatomic molecule. In this experiment, the diatomic molecule studied is the gaseous HCl. In understanding the vibrational energy levels of a diatomic molecule, the molecule is first approximated to a harmonic oscillator which obeys Hooke’s Law: an approximation which states that the extension of a spring is directly
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APPLICATIONS OF ELECTRON MICROSCOPY IN MATERIALS AND METALLURGICAL ENGINEERING A TERM PAPER PRESENTED IN PARTIAL FULFILMENT OF THE REQUIREMENTS FOR THE POSTGRADUATE COURSE MME 604 [ELECTON OPTICS AND MICROSCOPY] BY MARK, UDOCHUKWU 20044449298 SUBMITTED TO ENGR. PROF. O. O. ONYEMAOBI [EXAMINER] DEPARTMENT OF MATERIALS AND METALLURGICAL ENGNEERING FEDERAL UNIVERSITY OF TECHNOLOGY, OWERRI AUGUST 2005 i Markudo [2005] PREFACE The electron microscope is an indispensable
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HEAD | PREVIOUS | Chapter 1 Introduction 1.1 What is a Plasma? 1.1.1 An ionized gas A plasma is a gas in which an important fraction of the atoms is ionized, so that the electrons and ions are separately free. When does this ionization occur? When the temperature is hot enough. Balance between collisional ionization and recombination: | Figure 1.1: Ionization and Recombination Ionization has a threshold energy. Recombination has not but is much less probable. Threshold is ionization
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JUNIOR 1 S Y 2000 - 2 0 0 1 V o l . 20 N o . 1 C O N T E N FOR LOVE OF DIAMONDS These brilliant gems are not only for fashion but find many uses in other industries as well. CHEMISTRY: BUILDING BLOCKS OF MODERN CIVILIZATION Understand the significance of chemistry throughout man’s history. NUCLEAR CHEMISTRY: TOWARDS A SAFE ENERGY SOURCE Is nuclear technology a boon or bane of science? Read on. T S ib er s, De ar BB su bs cr ng ga zin e is ma ki Ba
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