Atomic Structure & Electricity 1. Draw an atom with an atomic number of 12. Label the protons‚ neutrons‚ and electrons. Use the periodic table to identify which atom you have drawn. 2. How many valence electrons are present in this atom? 2 3. Would this atom prefer to gain or lose electrons? Why? Lose‚ because the octet rule dictates that if there is less than 4 valance electrons‚ they would prefer to leave the atom. 4. Describe the differences between conductors‚ semiconductors
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Hazards of Static Electricity; Lightning Lightning is a massive electrostatic discharge between the electrically charged regions within clouds or between a cloud and the surface of a planet. It is the sudden high-current discharge caused by the atmosphere’s electrical breakdown. Lightning is also one of the most deadly natural phenomena known to man. Lightning is an electric current; thus within a thundercloud up in the sky‚ many small bits of ice (frozen raindrops) collide into each other as
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Research Proposal: Importance of PR Office in Tanzania universities – A Case Study of TUDarCO August 17‚ 2008 By Mohammed Khelef LITERATURE REVIEW Dictionary.com describes Public Relations as the art‚ technique or profession of promoting such goodwill that is exactly what a public relations office (PRO) does. It is the office that specializes in promoting news. The term Public Relations was first used by the US President Thomas Jefferson during his address to Congress in 1807
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February is Black History month and blacks impacted our history by what they did and the lives that they changed. All blacks that lived back then went through unimaginable things‚ like slavery‚ segregation and racism. Martin Luther King Jr. had awful experiences‚ he was making speeches against the whites in order to free the blacks from slavery in result of him doing this‚ his house got burned down. He fought for blacks to do activities with whites‚ eat with them and even live in the same neighborhoods
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In the twentieth century‚ Marilyn Monroe was the sex symbol of the world. Marilyn Monroe’s birth name was Norma Jean Mortenson‚ but later she changed it when her career started. Although‚ Marilyn did not have a healthy environment as a child‚ it did not affect her talent in front of the camera. June 1‚ 1926‚ was the day she was born to Gladys Pearl Mortenson. After Marilyn’s birth‚ Gladys had an unsettled lifestyle; she felt like she could not provide for her daughter (J. Peterson 1). Gladys became
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What is air pollution? - Air pollution is the contamination of the air with impurities. These include smokes‚ dust and soot from forest fires and the burning of garbage’s. Internal combustion engines using gasoline emit carbon monoxide‚ lead and particulates into the atmosphere. Pictures of air pollution What cause air pollution- * Burning of garbage’s * Using gasoline emit carbon monoxides * sulphur dioxide and nitrous oxide * sugarcane factories at time emit black polluted
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Jesse Owens has changed the world’s view on racism ‚ equality and has shown people around the world that no matter what their background is they can achieve their goals . Jesse Owens is an African American who proved color does not determine a person’s ability‚ character‚ or how far they will go to reach their goal. Jesse Owens was not always the amazing track and field athlete people know today he had to push himself to reach his goals. Jesse Owens is one of the most inspiring athletes of
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industry in Pakistan and its impact on our society till now A Brief History Of Cell Phones Cell Phone History In today’s world‚ most people communicate through the use cellular phones. It’s hard to believe that fifteen years ago cell phones were a rarity. Below is a history chronicling the dawn of the cell phone to its current state. 1843 - A skilled analytical chemist by the name of Michael Faraday began exhaustive research into whether space could conduct electricity. Faraday exposed his great
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150 years ago‚ approximately around 1886‚ electricity was becoming a very exciting thing as AC plants started to appear all over the world. This meant great change for not only our establishments but also‚ for families that were near it and could afford it. It was the dawn of aluminum‚ cars and now a better way of life with electricity‚ life was about to get more exciting as well as easier for many families. Around the time of the late 1800’s‚ under the idea of “separate spheres”‚ caring for children
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By 1515 Henry continues to entrust More with foreign affairs and sends him to Bruges to oversee a treaty associated with England‚ it’s here that Thomas More would begin to write his most famous of works‚ the some say masterpiece that is ‘Utopia’. The book focuses on a complex‚ self-contained world set on an island in which the communities share religious‚ social and political customs. It embodied vast political undertones and was seen to be quite a revolutionary piece of work‚ although futuristic
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