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Difference Between Mendeleev And The Periodic Table

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There are many differences in between Mendeleev’s periodic table (that was first started in 1869) and today’s modern style periodic table. Mendeleev is known as the father of the periodic table. He had published a periodic table just five years after John Newlands had put forward his law of octaves. Mendeleev didn’t do all of the work on the periodic table though. He had some “help” from a few other scientists, chemists, and geologists. Although he was the first person to publish the first version of the periodic table there was someone who almost beat him to it. His name is Julius Lothar Meyer. Meyer was the first person to recognize the periodic trends in the properties of the elements. He made many periodic tables from 1864- 1870, but his first table only contained twenty-eight elements which were all organized by how many other atoms they can combine with. …show more content…

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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He also worked with Thomas Jefferson in drawing the Declaration of Independence, which took place in 1776. He authored the Massachusetts constitution in 1780, which paved way for the American constitution. His work

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He did this with the help of a friend who had given him a clock, which he disassembled for the purpose of learning about the way it functions. With what he found out, he built a different clock, as mentioned above and earned fame. It also helped him learn more about math (Benjamin Banneker (1731-1806), n.d., p. xx) ("Mathematician and Astronomer Benjamin Banneker Was Born," n.d.)

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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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He also invented the Pyrometer, which is a type of thermometer that can measure how hot high fire kilns are on the inside, without opening the kiln door and cracking the pottery inside. He was one of the very first people working on things like this so there was very

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Optical Lenses by Amy Hogan The earliest known optical lenses date back to 750 BC in the assyrian empire. The first lense was know as the layard lense and was most likely used as a magnifying glass or to start fires. Many similar lenses have been found from ancient egypt, babylon, and greece. Ancient egypt and greece would fill glass spheres with water to achieve the same affect of lenses. Coincidentally lenses wasn't thought of until the middle ages.

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Linus Pauling Linus Pauling was a very important scientist who over seven decades of his life made many discoveries in multiple fields of science including: physical, structural, analytical, inorganic, organic chemistry, and biochemistry. He was born in the 20th century and contributed greatly to science field during this time. He is known for “Pauling’s Rules” and other inventions he is responsible for. He would also go on to write his own books detailing some of his work, he made very diverse discoveries and discovered many things in many different fields; which is very unique for a scientist. Pauling was an activist and was very involved and fought for causes he thought were important.

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Hannah Johansen 9/28/15 CP Chemistry Antoine Lavoisier Born on August 26th 1743, Antoine Lavoisier [la-vwa-zyey] was born into a wealthy family. He lost his mother at the tender age of five and inherited a fortune large enough to sustain him through all of his childhood and into early adulthood. Antoine’s father, Jean-Antoine Lavoisier, was a well renowned lawyer in the parliament. He began attending school at the age of eleven.

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Her most noted achievement, that propelled her scientific platform, was her discovery of the 88th element of the periodic table, Radium. “Though her most well-known contribution to science was of unrivaled status, she also published her finding of element number 84, Polonium, in July 1898, which preceded her discovery of Radium in the following December” (Pasachoff). Her eye-opening revelation to the scientific community was the product of many years of hard work alongside her husband, Dr. Pierre Curie. Along with a handsome pair of unveiled elements, Marie Curie was highly recognized throughout her educational endeavors. “She graduated from high school with the highest honors at just 15 years of age” (Pasachoff).

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Democritus contributed to the Atomic Theory by experimenting and stating that the universe and all matter obey the following principles of everything is made of Atoms, which are physically indivisible. Democritus had many ideas which included atoms cannot be created, destroyed, or further divided and different kinds of atoms have different

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To support his theory he used 3 pieces of evidence. He noticed that the continents seemed to fit together. Along with that he saw the distribution of fossils on the continents, and lastly he observed that the rocks and other structures were similar on all different places. The first piece of evidence he found were that the continents seemed to fit together.

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During his studies he came across information in the books written by Euclid called The Elements. Archimedes and some other mathematicians used Euclid’s information as models for their own analyse. Euclid influenced the work of Archimedes and because Archimedes knew so much about Euclid’s work, he was able to make new discoveries. Archimedes began to send his discoveries to some scholars in Alexandria - Conon, Dositheus, and Eratosthenes.

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Thales of Miletus Thales was a Greek mathematician who created five theorems for elementary geometry. Not only was he recognized for his creations, but he is also the first known philosopher and scientist. The ancient Greek mathematician was originated in Miletus in Greek Ionia, and his occupation was engineering. Thales’s philosophy and science was inspired by the great Aristotle; he expressed Thales as the first to study and deeply research the basic principles, discover where matter substances were originated, and the founder of a much higher level school of natural Philosophy. He also created the scientific method.

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Franklin was able to discover electricity and learned how to conserve electricity from a lightning bolt. He published books and pamphlets about his discoveries. Benjamin Franklin also wrote and helped many famous documents. Some documents he helped with was the Stamp Act and the Declaration of Independence. Benjamin himself wrote an entire speech to the president about the constitution and what he thinks about it.

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The purpose of the experiment, “Flame Test Lab”, is for one to determine if an element can be identified by the light they give off when inserted in the flame of a Bunsen Burner. The process of the experiment required extreme precaution, since Bunsen Burners were a key material. Students were given six elements to place within the flame of the Bunsen Burner. Lithium, calcium, potassium, copper, strontium, and sodium were all of the elements used during the process of the experiment. Before the experiment students were required to write a hypothesis.

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The Renaissance and Baroque periods of music are two very similar and different eras. The Renaissance which began after the end of the Middle Ages in 1450 and ended the beginning of the 1600s, this is where the Baroque period starts. The beginning of the Renaissance period was compromised of sacred and religious music cultivating from the middle ages. Before the Renaissance period music had to be copied and re-written by hand, which was a very difficult task to do continuously. During the Renaissance period however, printing was invented, which made producing music easier and also changed a lot of other things in other areas.

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