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John dalton on coming up with the atomic model
What is the contribution of john dalton in science
What is the contribution of john dalton in science
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John Dalton was a renowned chemist born in Eaglesfield, England on September 6th, 1766. Dalton is known for his teachings of James Prescott Joule, the atomic theory, and Dalton’s Law of Partial Pressures. Dalton did much to contribute to the wide world of chemistry as a whole. Dalton is best known for his contribution to the modern atomic theory. Born in 1766, John Dalton faced many obstacles while studying chemistry. Although many obstacles were faced, Dalton still achieved becoming one of the best known chemists of all time. Before John Dalton, the majority of people did not understand the makeup of an element and why it could be held together. But Dalton came up with the modern atomic theory, explaining the basics of atoms. And also opening many doors to boundless amounts of research on the atom.
The idea that all matter is made up of small particles dates back to the 5th century where philosophers such as Leucippus and Democritus studied these particles. During this time atoms were thought to be too small to be seen, unchangeable, and indestructible. They came to the conclusion that atoms were solid and had no internal structure. This findings were the building blocks that Dalton used to base his modern atomic theory on. Without these philosophers Dalton may not have had an interest in the atom.
Although this idea has been around for centuries, ideas against the atomic theory have been around just as long. The philosopher Aristotle, argued against the existence of atoms all together. Roman Catholic theologians during the Middle Ages in Europe also backed up the argument of Aristotle. Overall, the atomic theory has been an on going argument for many centuries and is still being tested today.
Then, in 1808 John Dalton came ...
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...arch so many different theories and laws to test the consistency of the atom. Before Dalton, philosophers didn’t even know that atoms could be seen. With John Daltons discoveries we have been allowed to better understand the atom and all of the crucial elements that are combined to make it up. With this knowledge we have been able to understand the difference between a liquid, solid, and gas. If we have so recently been able to understand all of this new information, there is no telling what the future may hold for the research of the atom.
In conclusion, John Dalton is such an important figure in the world of chemistry. Without him we would not be where we are today. And scientists could not study what they have and are studying in our society today. Scientists all over are fortunate to be able to further study the same items that John Dalton studied so long ago
John Dalton, born 6th September 1766, is known for developing the theory of the elements and compounds atomic mass and weights and his research in colour blindness.
The cathode ray tube was invented in 1875 by the name of Sir Williams Crooke. Yet he wasn’t the one to make the big discovery. In 1897, a man by the name of J.J. Thompson conducted a series of experiments to prove the existence of subatomic particles. He wasn’t 100% correct with all of his claims he made but broke the theory John Dalton stated that the smallest form matter could be broken down to was an atom. Having shown the world that there was smaller than an atom, it later caused others to question and dive even deeper.
Dalton’s atomic theory, which stated “the atoms were tiny, indivisible, indestructible particles” (Bender), differed drastically from that of the Greeks’ in that it “wasn’t just a philosophical statement that there are atoms because there must be atoms” (Bender). Although Aristotle believed that there are four terrestrial elements, earth, water, air, and fire, Democratus believed that “a piece of a substance can be divided into smaller pieces of that substance until we get down to a fundamental level at which you can’t divide the substance up and still have pieces of that substance” (“Atoms”). Aristotle’s theory was popular, but incorrect; Democratus’s was closer to our current theory, yet he remained relatively unpopular and obscure. This demonstrates of the key way in which a personal point of view can, in fact, retard the pursuit of knowledge. The scientist with the better oratory abilities has his theories more widely accepted. Dalton’s own theory, which extrapolated upon four basic
and opened doors for later scientists that were in his field of organic synthesis. He was a
British chemist and physicist John Dalton theorised that matter is composed of spherical atoms (that are in motion) of different weights and are combined in ratios by weight.
Although atomism certainly was not a new philosophy by the time Lucretius wrote, or even by the time of Rome’s ascension to power, the original propositions regarding the nature of matter were not enough to construct a philosophy similar to that presented by Lucretius. Over time, atomism had evolved from a binary view that the world consisted solely of atoms and void, ...
John Dalton was born on September 6 1766 at Eagelsfield, Cumbria in England.Although he was born in England, he spent most of his life in Manchester.He was born into a Quaker family and while his family had food, they were still poor. His father Joseph was a weaver and John recieved most of his early education from his father. At the age of 12, John opened a school in Eagelsfield where he was the master. He was often threatened by the older boys who wanted to fight him because he was smarter, but he managed to keep in control for 2 years.Due to a poor salary, John was forced to leave his school and work in the fields with his brother. In 1781 John and his brother moved to Kendall. There John, his cousin George, and his brother ran a school where they offered English,Latin,Greek,French and twenty one mathematics and science course. Their school had sixty pupils. After twelve years at Kendall John started doing lectures and answering questions for mens magazines. John found a mentor in John Gough,who was the blind son of a wealthy tradesman. John Gough taught Dalton languages,mathematics,and optics. In 1973 John moved to Manchester as a tutor at New College. He immediately joined the Manchester Literary and Philosophical Society and in the same year he published his first book: Meteorological Observations and Essays. In his book Dalton stated that gas exits and acts independantly and purely physically not chemically. After six years of tutoring, John resigned to conduct private research while still doing tutoring at 2 shillings a lesson. In 1802 John stated his law of partial pressures. When two elastic fluids are mixed together ( A and B) they dont repel each other. A particles do not repel B particles but a B particle will repel another B particle. One of his experiments involved the addition of water vapor to dry air. The increase in pressure was the same as the pressure of the added water. By doing this experiment, John established a relationship between vapor pressure and temperature. John’s interest in gases arose from his studies of meteorology. He had weather equipment that was with him at all times and he was constantly studying weather and atmosphere. He also kept a journal throughout his life in which he wrote over 200,000 observations. In 1803, John made his biggest contribution to science: The Atomic Theory.
She was not the type to base her idea of writings off others. Cavendish's first anthology, Poems, and Fancies, included the earliest version of her ideas on natural philosophy. Although English atomic theory in the seventeenth century attempted to explain all natural phenomena as matter in motion, in Cavendish's philosophy all atoms contained the same amount of matter but differed in size and shape; thus, earth atoms were square, water particles were round, atoms of air were long, and fire atoms were sharp. This led to Cavendish’s theory on disease, and how it was due to fighting between different atoms or there was too many one type of atom shape. However, Cavendish ended up rejecting her ideas on the theory of atoms. By 1665, when she published Philosophical and Physical Opinions, she had decided that if atoms were "Animated Matter," then they would have "Free-will and Liberty" and thus would always be at in a battle with one another and unable to cooperate in the creation of complex organisms and minerals. She had sent copies of her new ideas to the most famous scientists and celebrities of the time period. Although other philosophers had different theories, Cavendish continued to view all matter as composed of one material (Clairhout and Jung).
Dmitri Mendeleev was one of the most famous modern-day scientists of all time who contributed greatly to the world’s fields of science, technology, and politics. He helped modernize the world and set it farther ahead into the future. Mendeleev also made studying chemistry easier, by creating a table with the elements and the atomic weights of them put in order by their properties.
The Atomic Theory began in roughly 400BC with Democritus in Ancient Greece and is universally believed to be correct today. Democritus who was born in 460 BC and died 370 BC and is known as the father of modern science. Democritus proclaimed that everything is made up of atoms. He continued his theory to say that atoms will always be in motion, between atoms there is empty space, atoms are unbreakable, there are an infinite number of atoms all different sizes and shapes. He also said that iron atoms are solid and strong and have hooks to lock them together, water atoms are smooth and slippery, salt atoms have sharp jagged edges because of its taste and air atoms are light and spiralling.
Things are very different from each other, and can be broken down into small groups inside itself, which was then noticed early by people, and Greek thinkers, about 400BC. Which just happened to use words like "element', and `atom' to describe the many different parts and even the smallest parts of matter. These ideas were around for over 2000 years while ideas such as `Elements' of Earth, Fire, Air, and Water to explain `world stuff' came and went. Much later, Boyle, an experimenter like Galileo and Bacon, was influenced much by Democritus, Gassendi, and Descartes, which lent much important weight to the atomic theory of matter in the 1600s. Although it was Lavoisier who had divided the very few elements known in the 1700's into four different classes, and then John Dalton made atoms even more believable, telling everyone that the mass of an atom was it's most important property. Then in the early 1800's Dobereiner noted that the similar elements often had relative atomic masses, and DeChancourtois made a cylindrical table of elements to display the periodic reoccurrence of properties. Cannizaro then determined atomic weights for the 60 or so elements known in the 1860s, and then a table was arranged by Newlands, with the many elements given a serial number in order of their atomic weights, of course beginning with Hydrogen. That made it clear that "the eighth element, starting from a given one, is a kind of a repeat of the first", which Newlands called the Law of Octaves.
The next big step in the discovery of the atom was the scientific test that proved the existence of the atom. After the discovery of the atom we had the discovery of subatomic particles. With the discovery of the subatomic particles came the research, which came from experiments that were made to find out more about the subatomic particles. This research is how we uncovered that most of the weight of an atom is from its nucleus. With the gold foil experiment, tested by Ernest Rutherford, he discovered the existence of the positively charged nucleus. He proved this when the experiment was happening, a small fraction of the photons th...
Then, in 1766 was born a man named John Dalton born in England. He is known as
Dalton was influenced greatly by the mathematician John Gough. Dalton while in Manchester became the teacher of math and philosophy at a college. He taught there until 1799. Dalton became a chemist and physicist after his teaching jobs. Dalton did a lot of experimenting but did not test his experiments to make sure they were right. A good amount of his experiments were later proven to not be true. But his most famous theory "Dalton law" the modern atomic theory was proved true.
Scientists from earlier times helped influence the discoveries that lead to the development of atomic energy. In the late 1800’s, Dalton created the Atomic Theory which explains atoms, elements and compounds (Henderson 1). This was important to the study of and understanding of atoms to future scientists. The Atomic Theory was a list of scientific laws regarding atoms and their potential abilities. Roentagen, used Dalton’s findings and discovered x-rays which could pass through solid objects (Henderson 1). Although he did not discover radiation from the x-rays, he did help lay the foundations for electromagnetic waves. Shortly after Roentagen’s findings, J.J. Thompson discovered the electron which was responsible for defining the atom’s characteristics (Henderson 2). The electron helped scientists uncover why an atom responds to reactions the way it does and how it received its “personality”. Dalton’s, Roentagen’s and Thompson’s findings helped guide other scientists to discovering the uses of atomic energy and reactions. Such applications were discovered in the early 1900’s by using Einstein’s equation, which stated that if a chain reaction occurred, cheap, reliable energy could b...