PERIODIC CLASSIFICATION OF ELEMENTS Introduction There are 115 elements that are known at present. Some elements have similar properties whereas some others have completely contrasting properties Scientists began to look for some pattern in the properties of these elements Dobereiner’s triads In 1817‚ Johann Wolfgang Dobereiner‚ a German chemist‚ classified elements into groups based on their properties. He kept all elements having similar properties in one group. Most of his groups had three
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Classification of teaching methods Teaching is a creative art that teacher has to use many methods which can meet the learner’s needs and the demands of learning situation. There are many methods throughout the history of teaching English. It is suggested‚ however‚ in this essay three common methods‚ namely‚ Grammar-Translation‚ Direct Method and Communicative Language Teaching‚ clarified into two categories: teacher-centered and student-centered. Teacher-centered here just includes Grammar-Translation
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Running head: FINDING THE LEADER IN YOU Assignment 1: Finding the Leader in You: Self-Assessment / Johari Window Paper Submitted to Instructor: Dr. G. Reeley BUS520037VA016-1134-001 Leadership and Organizational Annette West Strayer University April 27‚ 2013 Assignment 1: Finding the Leader in You: Self-Assessment / Johari Window A Paper In order to become more informed about specific leadership styles that are commonly used
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Periodic Classification of Elements Classification of Elements according to electron configuration ( type of subshell being filled) *valence electrons –outer electrons of atom which are those involved in chemical bonding ; accounts for similarities in chemical behavior among elemens within each of this groups * Representative elements/ Main Group elements * Group 1A-7A * Incompletely filled s/ p subshells * Display a wide range of physical and chemical properties
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Who are these people? “God gave us our relatives; thank God we can choose our friends” Ethel Watts Mumford Anyone who is lucky enough to be a part of a big family and is able to spend time with them should consider the individual personalities that collectively define their family’s dynamics. Each member has different traits and experiences that make them who they are. Over the years I have attended countless family dinners and events and have taken note of a few extreme characteristics
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VACATIONING AT THE BEACH OR IN THE MOUNTAINS People are always looking forward to their vacation period. There are many options where to choose. I think that the most two common places people choose for taking a vacation are the beaches and the mountains. Both places offer a variety of fun activities. The beach offers activities that the mountain can not offer. The mountain and the beach are totally different. The purpose of this essay is to contrast the climate‚ types of activities and
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In today’s society‚ children are faced with many obstacles; bullying‚ learning disabilities‚ trying to “fit in”‚ and obesity just to name a few. Many children have problems with obesity due to the easy access to fast food and junk food. One of the biggest forms of junk food is candy of any sort. Some children are chocolate fanatics‚ some like the sweet‚ sugar-coated candy‚ and others like the sour candy that make their lips pucker. Today I am going to tell you about the different categories of
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Title: Types of Movies Topic Announcement: Movie Genres Introduction Background: Movie genres describe the film and its purpose to the audience. Thesis Statement: “There are many genres for any person’s interest.” Comedy Comedies are light-hearted plots that are designed to amuse‚ entertain‚ and provoke laughter from the audience. They provide a momentary escape from day-to-day life. (Dirks‚ “Main Film Genres”) Body Paragraphs Romance
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The two classes of vitamins are Fat – soluble vitamins and water – soluble vitamins. Fat – soluble vitamins include vitamin A‚ vitamin D‚ vitamin E‚ and vitamin K. These vitamins are considered fat soluble vitamins because they are stored in the body for long periods of time and are harder to break down‚ while water soluble vitamins are not. Water – soluble vitamins include vitamin B1 (thiamin)‚ vitamin B2 (riboflavin)‚ vitamin B6‚ vitamin B12‚ and vitamin C‚ folic acid‚ and niacin. These vitamins
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Seasons are generally classified into four groups of three months each: winter‚ spring‚ summer‚ and fall. Winter is considered December‚ January‚ and February; spring is March‚ April‚ and May; summer is June‚ July‚ and August; fall is September‚ October‚ and November. While winter is the coolest season and generally the wettest‚ spring’s temperatures are more moderate with the introduction of warmer days and night. Summer‚ the hottest season‚ is generally considered the driest‚ although sometimes
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