Essay On The Periodic Table

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Discovery and Organization of the Periodic Table

In order to understand the periodic table, a basic knowledge in the terminology would be very helpful. A periodic table a chart organizing elements by atomic numbers and chemical properties into groups and periods. The periodic table was created in order to easily find and classify the different elements that are known. Elements are pure substances composed of just one type of atom that cannot be broken down into anything simpler by ordinary chemical means. Some examples are Oxygen, Carbon, Gold, and Silver. [Source A] An atomic number is the number of protons or electrons in an atom, the number that appears over the element symbol. The Periodic Table is a tool used by many to solve different
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A little known fact is that the first known pure substance was discovered by the Ancient Greeks, who had only discovered the metallic elements. This was considerably very good because the Greeks had no modern technology. So because of this setback, this was the only thing that they could discover. The very first element was discovered in 1649. Hennig Brand discovered the element Phosphorus.[Source F] He considered all other elements that were soon to be discovered were an antiquity. The scientists did not know much about how the elements worked or what made them different from one another. The time period around the nine-teenth century, the field of chemistry had only about fifty known elements. This is a very limited knowledge of the elements, compared to todays knowledge. Advancements in technology was making discovering elements much easier. By 1869, the world had discovered about sixty-three different elements. [Source F] This was a considerable amount of elements compared to just a little more than two hundred years. The scientists are noticing patterns as well as discovering new elements. This helps many people if they are confused or for people who want shortcuts to figuring out the periodic table. One scientists that had a huge part for designing the periodic table was Mendeleev and he said that the gaps in his version of the table were the elements that haven’t been discovered …show more content…
Petersburg in Russia to further advance his study in chemistry.[Source F] He was originally a teacher who later became a lecturer and researcher at the University of St. Petersburg. It was through his teaching experiences that he realized that an organization system for the elements was needed in order for the elements to be understood easier. Mendeleev had first gone to a committee of scientists that helped organize what they thought a periodic table should look like with the known 63 elements. Mendeleev had the best idea and the most specific table that included everything that was known about that element.The results of Moseley led to the conclusion that the order of the elements in the periodic chart was based on some fundamental principle of atomic structure.[Source F] Because of his work, other scientists were convinced that the periodic nature of the properties of elements is due to differences in the subatomic particles. Henry Mosely was another famous scientists who seemed destined to leave his mark on chemistry. He was born in England in 1887, into a family with extreme scientific pedigree. Both of his grandparents and his father were all part of the royal society. Henry Moseley had thought of an idea to

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