Chemical elements

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    Tin Is A Chemical Element

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    Tin is a Chemical element its symbol is Sn. Its location on the periodic table of elements is period 5 group 14. Its atomic number is 50 and the atomic weight is 118.71. It has 50 protons, 50 electrons, and 69 neutrons. Tin is a solid, ductile, malleable, silvery-white metal. Tin melts at a low temperature of about 232 °C (450 °F). Tin resists corrosion from water, but can be attacked by acids. Around 5000 years ago, humans first began mining and incorporating tin with copper to create bronze thus marking the beginning of the Bronze Age. Around 3,000 B.C. Joseph of Arimathea, the person who is said to have donated his tomb to Jesus Christ, was said to be a tin merchant. About 253,000 tonnes of tin have been mined in 2011, mostly in China…

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    The noble gases are the group of elements which are like no other elements. The noble gases are the elements grouped as the last group, group 18. These elements, from smallest to greatest atomic mass, are Helium, Neon, Argon, Krypton, Xenon, and Radon. Group 18 wasn't always called the noble gases. this group used to be called the inert gassses. They changed the name of thisi group because they are not always inert, or chemically inactive. the first element in this group is the element…

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    Mercury Claiming the life of Karen Wetterhahn, this chemical element has been proven mesmerizing but also fatally dangerous. Today I will be talking about the physical and chemical properties of Mercury, How the properties of mercury are useful in society, and the harmful effects mercury has to the human and environment. Mercury has 5 main physical properties including color, luster, conductivity, surface tension, and density. The chemical properties of Mercury include toxicity, oxidation,…

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    He additionally published several books including “Elementary Treatise of Chemistry” which is known as the first modern Chemistry textbook. While his textbook did have a few errors it made important advancements such as defining a chemical element as a substance that cannot be reduced in weight by a chemical reaction. Not only did he make these discoveries and observations but he also assisted in creating the metric…

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    Atoms: A Valence Electron

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    the properties of an element. Comprised of the subatomic particles: electrons, protons and neutrons. For which the Nucleus contains the Protons and Neutrons, while electrons orbit around the nucleus. The atom is a fundamental piece of matter. Atoms are the building blocks of matter and matter builds up the Universe. A Valence Electron is an electron, which is a subatomic particle of an atom. Valence electrons are located in the outermost shell of the atom, these can be transferred to or shared…

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    Chapter 11, “The Chemical Elements”, was of great interest to me. “Chemistry is the study is the study of the composition and structure of matter (anything that has mass) and the chemical reactions by which substances are changed into other substances (James T. Shipman 285).” In this summary paper, I will discuss some of the highlights of the chapter. The way I see it, God is the original/first chemist. He took His own creations (the elements in our Periodic Table) to make provisions for…

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    Research Paper On Cobalt

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    Cobalt: The element Cobalt it is located on the periodic table, Group 9. Cobalt is the 27th element on our Periodic Table. It is a chemical element, it has a density of 8.9 grams per cubic centimeter. Cobalt has a boiling point of 3,100 degrees Celsius (5,600 degrees Fahrenheit). Cobalt’s symbol is Co, The atomic # is 27 so the protons and electrons are 27 as well. Cobalt has an atomic mass of 59 and 32 neutrons. The melting point is 2,719 degrees Fahrenheit. This element was discovered in…

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    Bromine Research Paper

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    diatomic elements. Bromine is one of two elements that holds the natural state of liquid. I chose bromine for my independent paper because of many other elements I knew little to none about, I have never heard of bromine and was interested to learn more. The bromine name was derived from the word bromos, meaning “bad smell” or “stench”. Whilst being in group 7, Bromine contains the electron configuration: 1s22s22p63s23p63d104s24p5 or [Ar] 3d104s24p6. The physical appearance of bromine…

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    Chemistry Honors Mrs. Moreno Period 5 INTERPRETING THE PERIODIC TABLE Partner’s name: Faranak Hajikhan, Pablo Moncada, Albina Contreras and Karla Santos Title: Interpreting the Periodic Table Date: 12-18-14 Subject: Honors Chemistry / Period 5 Introduction: The periodic table is a table of the chemical elements in which the elements are arranged by order of a atomic number. The periodic table also has a special name for its vertical columns. Each…

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    Many chemicals are safe to handle but negatively impact the environment in the long run. Other chemicals such as arsenic are toxic even in the smallest amounts. Mercury is a natural element that occurs throughout our environment and solar system. It has unique properties (i.e liquid metal at room temperature) and can be found in very small concentrations in many rocks and is the main component of the mineral cinnabar. Natural background levels can be detected in soils, living organisms, air, and…

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