The Classification Of Elements Of The Periodic Table

The periodic table shows the classification of elements. It shows the elements’ atomic numbers, masses, and symbols for each element. Elements are placed into rows and columns. The rows are called periods, and the columns are called groups. These help classify where the elements go on the periodic table. For example, the elements in the very last group on the periodic table are known as inert and noble gases. The modern periodic table resulted from trial, error, and succession. As more elements were discovered, the periodic table had to go through many changes to fit these newly discovered elements. This led to the modern periodic table we have today. Back in EBC, there was little if any science that was known. Although Gold (Au), Silver (Ag), Tin (Sn), Copper (Cu), Lead (Pb), and Mercury (Hg) are used on the modern periodic table, these elements were known by people for thousands of years. Aristotle, a philosopher, thought that the world was not just created out of n owhere. It has to be created by something. Aristotle thought that â€Å"roots† created the Earth. Plato, another philosopher, agreed with Aristotle. However, Plato called the â€Å"roots† â€Å"elements† instead. The term element was originally associated with what created the Earth: Air, Earth, Water, and Fire. These â€Å"elements† were used to explain what made up the Earth. People agreed with this idea for over a thousand years, until modern elements were discovered starting in the 1600s (WOU). In 1649, thereShow MoreRelatedPeriodic Classification of Elements884 Words   |  4 PagesPERIODIC CLASSIFICATION OF ELEMENTS Introduction There are 115 elements that are known at present. Some elements have similar properties whereas some others have completely contrasting properties Scientists began to look for some pattern in the properties of these elements Dobereiner’s triads In 1817, Johann Wolfgang Dobereiner, a German chemist, classified elements into groups based on their properties. He kept all elements having similar properties in one group. Most of his groups had threeRead MoreHistory Of The Periodic Table1711 Words   |  7 PagesHistory of the Periodic Table Austin Smith LSG5 Scientists all around the world have attempted to group, sort and organise elements together for hundreds of years, with initial classification systems dating decades before the dawn of an actual table in the nineteenth century. An example of early work prior to the 1800s is Antoine Lavoisier and partners Antoine Fourcroy, Louis-Bernard Guyton de Morveau and Claude-Louis Berthollet’s list of elements. 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It is said in the Kahn Academy article that Dmitri Mendeleev got the idea for the Periodic Table from playing solitaire. He also envisioned the periodic table in a dream after a three day work binge. He also was known for finding thirtyRead MorePhysics Of The Periodic Table1506 Words   |  7 PagesThe Periodic Table Chemically speaking, the periodic table was a major factor in improving the study of elements, in which then the study of these elements expands into broader studies such as atoms and sub-atoms. This essay will talk about the history of the development of the periodic table and will further discuss the how and why it was created. Moreover, it will include the history of various chemists that contributed in the improvement of the table such as Johann Wolfgang Dà ¶bereiner, John NewlandsRead MoreHistory Of The Periodic Table Of Elements1664 Words   |  7 Pages10/24/14 History of the Periodic Table of Elements The construction of the Periodic Table of Elements was prior to the discovery of the individual elements. Elements such as silver, gold, tin, copper, lead and mercury have been known for centuries. In 1649, the first scientific discovery of an element was made by Hennig Brand when he discovered phosphorous. Prior to Brand’s discovery, chemists had acquired an immense body of understanding concerning the properties of elements and their compounds forRead MoreDmitri Mendeleev: The Development of the Periodic Table Essay1529 Words   |  7 PagesDevelopment of the Periodic Table Introduction: The Periodic Table of Elements is a table that arranges all known chemical elements by order of their atomic numbers. During the 1600s, vast amounts of knowledge about the properties of elements and their compounds were discovered and by 1869 63 elements had been discovered. As more and more elements were discovered, scientists began to recognise similarities between their properties and began to devise means of classification. Thus the periodic table of elementsRead MoreHistory And Development Of The Periodic Table2227 Words   |  9 Pages History and Development of the Periodic Table Ben Madden 10B â€Æ' Part A: Timeline of the Periodic Table 0 Ancient Greeks believed that everything was made of four elements mixed together in different proportions. These elements were fire, water, air and earth. 1661 Robert Boyle had an assumption that an element was an individual substance that could not be broken down further into a smaller substance through the process of a chemical reaction. Boyle’s assumption is considered to be theRead MoreThe Development Of The Periodic Table1698 Words   |  7 Pagesthe Periodic Table including its origins, the original data used to construct it and the predictions made after its construction. (Include references to the contributions made by Antoine Lavoisier, Johann Dobereiner, John Newlands, Dmitri Mendeleev, Lothar Meyer, William Ramsay, Henry Moseley, J.J. Thomson and Niels Bohr. In 1803 a man by the name of John Dalton Proposed that matter was comprised of atoms that were very simple and solid with no structure. He also put forward that each element wasRead MoreDalton s Atomic Theory ( 1803 )1716 Words   |  7 Pagestheory (1803): Dalton proposed that all matter is made of atoms (tiny indivisible particles), which cannot be destroyed. He visualised atoms as a solid particle without a structure. All atoms of an element are identical in mass and properties. The atoms of one element differ from the atoms of all other elements in atomic weight. Compounds are combinations of two or more different types of atoms. A chemical reaction results in the rearrangement of atoms in the reactant and product compounds and they don