polyatomic ions). 1. Determine the Number of valence electrons in the Lewis Structure: One of the easiest ways to start drawing a Lewis Structure is to make a list of each atom in the structure and next to each atom record how many valence electrons it has and how many it needs to fill its valence shell. In covalent bonding the valence electrons in the molecule come from the valence electrons in the atoms that formed the bond. a. The number of valence electrons in any main group atom
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understanding. Based on geometry alone‚ many special patterns evolve‚ such as the square numbers‚ triangular numbers‚ and much more. The Stellar Numbers are mostly used in astronomy and astrology. Stellar Numbers are figurate numbers based on the number of dots that can fit into a midpoint to form a star shape. The points of the star determine the number of points plotted around the midpoint. Triangular numbers is a figurate number system that can be represented in the form of a triangular grid of points where
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The Egyptian number system I choose to write about the Egyptian Number system because I am familiar with the base system they use. Therefore‚ it is easy for me to explain. In this essay I will briefly talk about the history of the Egyptian number system‚ indicate their base‚ symbols‚ whether their number system is positional or not and finally explain their number system by giving examples. The Egyptians had a writing system based on hieroglyphs from around 3000 BC. Hieroglyphs was found
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Word count 1466 Introduction: Attachment theory can be useful to highlight core and basic human needs for social interaction and proximity to others. Used as a model of human development‚ it can help us consider how relationships between infants and their caregivers forge and underpin the development of fundamental areas of our lives; our self beliefs and constructs of the world around us; of ourselves and expectations of others; our abilities to self regulate our emotions and feelings; our sense
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Inequalities Maths Compiled By : OP Gupta [+91-9650 350 480 | +91-9718 240 480] Exercise 6.1 Question 1: Solve 24x < 100‚ when (i) x is a natural number (ii) x is an integer Answer The given inequality is 24x < 100. (i) It is evident that 1‚ 2‚ 3‚ and 4 are the only natural numbers less than . Thus‚ when x is a natural number‚ the solutions of the given inequality are 1‚ 2‚ 3‚ and 4. Hence‚ in this case‚ the solution set is {1‚ 2‚ 3‚ 4}. (ii) The integers less than are …–3
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Introduction The number π is a mathematical constant that is the ratio of a circle’s circumference to its diameter‚ and is approximately equal to 3.14159. It has been represented by the Greek letter "π" since the mid-18th century‚ though it is also sometimes written as "pi. π is an irrational number‚ which means that it cannot be expressed exactly as a ratio of any two integers (fractions such as 22/7 are commonly used to approximate π; no fraction can be its exact value); consequently‚ its decimal
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Mobile Number Portability What is MNP? Mobile Number Portability (MNP) allows the Mobile service subscribers to retain their existing mobile number when they move from one Service Provider to another Service Provider with in a same licensed service area. In other words‚ the Mobile Service Subscriber can switch from one operator to other operator with in telecom circle while keeping the same mobile number. MNP has often been considered as a tool to effect increased competition and improve
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concern on the minds of the drivers. Many people die every year due to reckless or careless driving. Driving safe is not a choice it is the law‚ but the law is broken and people suffer the affects of it. Driving drunk and texting while driving is the number one killer while in a vehicle. My perspective before turning sixteen was to drive with out any worries‚ but now because of the incident with my mother I realize driving safe is the right thing to do. She was a strong independent woman since her
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universal precautions. Suppose the spread of a direct contact disease in a stadium is modeled by the exponential equation P(t) = 10‚000/(1 + e3-t) where P(t) is the total number of people infected after t hours. (Use the estimate for e (2.718) or the graphing calculator for e in your calculations.) 1. Estimate the initial number of people infected with the disease. Show how you found your answer. Answer: A total of 474 people would be initially infected. Equation: p(0)=10‚000/(1+3^3) ~ 474
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The Elementary Education Act 1870 was the first piece of legislation in England and Wales which dealt specifically with providing education for children aged 5 to 13 years of age. Education was to become accessible by all and not just wealthy. The Act was sponsored by William Forster and became known as ‘The Forster Act’. Under the act voluntary schools were left unchanged and local education boards were set up to create schools where there was a gap. The local education boards were to inspect the
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