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Essay On The Periodic Table

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What is the periodic table: Our world is composed of many things. And these many things are composed of many other things. Everything on our earth is made of the elements of the periodic table (our earth is immense, imagine how important elements are!). Elements are substances that can’t be broken down or made into anything simpler by chemical reactions. The periodic table and its elements are both vital parts of chemistry and other sciences. The periodic table is basically a table that organizes elements into periods and groups. The vertical groups in the periodic table makeup closely related families of elements. Elements were first put into one giant table in 1869. When the elements were first organized to create what we now know as the …show more content…

This was an object that would supposedly be able to turn metals into pure gold. He heated residues from boiled urine, and a liquid dropped out and burst into flames. This was the discovery of phosphorus. This discovery most definitely had a huge impact on the world of science. In Boyle also discovered phosphorus, and this time it became public. In 1809, at least 47 elements had been found, and scientists had begun to see patterns in the characteristics of elements. In 1863, chemist John Newlands organized the 56 elements into 11 groups based on their characteristics and similarities. In 1869 Dmitri Mendeleev started the creation of the periodic table. He predicted the discovery of more elements, and left spaces open in his periodic table for them. In 1894, Sir William Ramsay and Lord Rayleigh discovered the noble gases. The noble gases group was then incorporated into the periodic table. In 1897 physicist J. J. Thomson first discovered electrons; small negatively charged particles in an atom. John Townsend and Robert Millikan later on were able to determine their exact charge and mass. In 1911 Rutherford and German physicist Hans Geiger found out that electrons orbit the nucleus of an atom. Radiation is emitted during movement from one orbital to another. In 1945 Glenn Seaborg identified lanthanides and actinides , which are usually placed below the periodic table. Till this day, scientist are still trying to enhance their knowledge on the Periodic Table and its

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New elements continue to be added to the periodic table as science knowledge increases. In January of 2016, a news article reported elements with atomic numbers 113, 115, 117 and 118 as approved by the International Union of Pure and Applied Chemistry. These elements completed the seventh row of the periodic table. Isdell shows the concept that chemistry continues to expand when Julie names an element in the Land of Science that did not previously exist, Wendelium with the atomic symbol Wd (Isdell, 442).

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Ancient scientist like Democritus and Leucippus proposed the idea of the atom(Doc.1). They were the first to start the long train of ideas and knowledge that brought us to the view of the modern atom(O.I). Since then, scientist such as John Dalton and Dmitri Mendeleyev have made huge leaps in the field of atomic science. John Dalton published the atomic theory of matter(Doc.1). Dmitri Mendeleev created the periodic table that modern scientist use daily(Doc.1).

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The chemical elements are divided into two broad groups, the metals and the non-metals. In this experiment, you will examine some members of the metal group and identify similarities and differences in their physical and chemical properties. Metals are the elements that are found in the left of the periodic table with high electrical and thermal conductivity. Metals lose electrons to create positive ion charges. Metals have a unique shine, are prone to forming, have a high tendency to form cations, and combine with oxygen to give mostly basic oxides.

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Copper is also a very important element in the medical field. Also, the united states penny was originally made from pure copper. Finally, the Statue of Liberty did not always look green. Copper was the first element manipulated by humans. It is now, currently still a major metal industry.

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Dmitri Mendeleyev brandished a new way to organize the Periodic Table. Therefore, the study of atoms is what brought many things that help us

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667 Words | 3 Pages

Who discovered it? How did they discover it? It was not Thomas Jefferson and it was not George Washington, so who was it? On the 17th of January 1706, a man by the name of Benjamin Franklin was born.

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1998 Words | 8 Pages

This finding made the world curious and even now almost a century later it is still one of the most talked about

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A conflict occurred in trying to name these elements, that’s when IUPAC stepped in, giving the elements their final names. These discoveries brought curiosity for people at UC Berkeley, significantly

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The periodic table that we know and use today is not the same periodic table we have always used. When the first periodic table was created in 1869, Russian chemist Dimitri Mendeleev had limited known elements making the table significantly different from the one we use today. Although both the Mendeleev periodic table and the modern periodic table look similar in shape, the organizational difference is what makes them unique. In Mendeleev’s time there were only 60 known elements.

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1022 Words | 5 Pages

(“Facts About Lead”) On the periodic table I am in column 14 and row 6. My atomic number is 82. When I stepped on the scale the other day my atomic weight was 207.2. My family is the Carbon group and I am classified as a metal.

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Franklin discovered that an excess of electrical fluid was a positive charge, and a shortage of electrical fluid led to a negative charge. He was also the first to say an electrical charge cannot be created, it can only be collected. In 1751 Franklin published a book called Experiments and Observations on Electricity. This book was widely read in Britain and Europe. ( Benjamin Franklin Bio)

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Dalton was best known for his work in the development of modern atomic theory. The was Dmitri organized the table was that he wrote out the elements on a card, each card has the atomic weights and were set in columns by order of the atomic weight. Each

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In 1789 Antoine Lavoisier helped to make the periodic table he grouped the elements based on their properties such as gases, nonmetals, metals, and earths. In 1829 Johann Dobereiner was the person that had recognized traits of the elements with chemically similar properties such as lithium, sodium, and potassium. He showed that the properties of the middle elements could be predicted from the properties of the other two elements. In 1862 De Chancourtious was the first to use a periodic arrangement of all the known elements showing that similar elements appear at the periodic atomic mass. John Newlands was the first person that had noticed that there where similarities between elements with atomic weight that was different by the seventh

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During this time, some of early civilizations has already established written records and this age has been the start of there historic period. Therefore, the Bronze Age or parts thereof are thus considered to be part of prehistory only for the regions and civilizations who adopted or developed a system of keeping written records during later periods. The term Bronze Age refers to a period in human cultural development when the most advanced metalworking (at least in systematic and widespread use) included techniques for smelting copper and tin from naturally occurring outcroppings of ores, and then combining them to cast bronze.

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The first periodic table was first introduced to us in 1869 by a Russian scientist named Dmitri Mendeleev. Mendeleev studied chemistry at the University of St. Petersburg. Mendeleev’s table had many differences from the one we use today. His periodic table was in order by atomic mass.

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