INORGANIC CHEMISTRY – CLASS XI (ISC) Properties of Group 1 elements [Alkali metals] 1. Due to high reactivity‚ alkali metals do not occur free in nature. Elements of group 1 (or IA) are known as alkali metals because their hydroxides are soluble in water and form strongly alkaline solutions. Alkali metals are stored under kerosene oil because they get tarnished on exposure to air. 2. The general electron configuration of alkali metals is ns1. 3. Alkali metals have largest size and lowest
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COrdination compounds Question 9.1: Explain the bonding in coordination compounds in terms of Werner’s postulates. =Werner’s postulates explain the bonding in coordination compounds as follows: (i) A metal exhibits two types of valencies namely‚ primary and secondary valencies. Primary valencies are satisfied by negative ions while secondary valencies are satisfied by both negative and neutral ions. (In modern terminology‚ the primary valency corresponds to the oxidation number of the metal
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Instructor’s Resource Manual to accompany Electronic Devices and Circuit Theory Tenth Edition Robert L. Boylestad Louis Nashelsky Upper Saddle River‚ New Jersey Columbus‚ Ohio Copyright © 2009 by Pearson Education‚ Inc.‚ Upper Saddle River‚ New Jersey 07458. Pearson Prentice Hall. All rights reserved. Printed in the United States of America. This publication is protected by Copyright and permission should be obtained from the publisher prior to any prohibited reproduction‚ storage in
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Chapter 1 : INTRODUCTION 1.1 BACKGROUND OF STUDY OVERVIEW OF NURSES RESPONSIBILITY IN MEDICATION ADMINISTRATION Providing care for the patient is the responsibility of nurses. Nurses are the one who are close with patients. They are responsible and accountable to make sure that the treatments and needs of patient are fulfilled. Medication administration is a part of the nurses’ responsibility in order to make sure clients get the correct medication as supposed. Medication administration
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REPORT ON SUMMER TRAINING OF Submitted to KCL-IMT (PTU) In partial fulfillment of the requirements for the award of degree of MASTER OF BUSINESS ADMINISTRATION Submitted by: Name of the student : KIRAN DOGRA Roll No: 1174251 | Supervisor:
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RESEARCH PAPER ON BIOLOGICAL ACTIVITY OF ACTINOMYCETES ................ ABSTRACT: The microorganisms are ubiquitous in nature. They are found in probably every environmental condition present on earth. Actinomycetes were originally considered to be an intermediate group between bacteria and fungi but now are recognized as prokaryotic organisms with high G+C (>55%) content in their DNA. Our project aim is to evaluate some biological activities of Actinomycetes like:
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200 Things to Know to Pass the Chemistry Exam 1. Protons are positively charged (+) with a mass of 1 amu. Example: Which has the greatest nuclear charge? Cl-35 Ar-40 K-39 Ca-40 2. Neutrons have no charge and a mass of 1 amu. 3. Electrons are small and are negatively charged (-) with a mass of almost 0 amu.. 4. Protons & neutrons are in an atom’s nucleus (nucleons). Which has the greatest number of nucleons? Sn-119 Sb-122 Te-128 I-127 5. Electrons are found in “clouds”
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Writing Research Papers Writing is easy. All you do is stare at a blank sheet of paper until drops of blood form on your forehead. --- Gene Fowler A major goal of this course is the development of effective technical writing skills. To help you become an accomplished writer‚ you will prepare several research papers based upon the studies completed in lab. Our research papers are not typical "lab reports." In a teaching lab a lab report might be nothing more than answers to a set of questions
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INTRODUCTION Isolation of Aspergillus niger from garden soil for the production of amylase enzyme and effect of various parameters on enzyme‚ production is the main aim of this study. Enzymes are protein catalysts synthesized by living systems and are important in synthetic as well as degradative process. Amylases are starch degradative enzymes that catalyze the hydrolysis of internal a-1‚ 4-0-glycosidic bonds in polysaccharides such as starch in to simple sugar (glucose and maltose). It is produced
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PSBPP103 Differential Gram’s staining EXPERIMENT NO. 1 AIM: THEORY: Page No: C1 Date: To Gram stain the given bacterial suspension and to differentiate between gram positive and gram negative organism. Visualization of microorganisms in the living state is very difficult‚ not just because they are minute‚ but because they are transparent and almost colorless when suspended in an aqueous medium. To study their properties and divide microorganisms into specific groups for diagnostic purposes
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