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Development of atomic theory and contributors
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Many different scientists contributed to the atomic theory. Every single one of them played an important role in creating the atomic theory known today. Around 400 BCE Leucippus was the scientist who originally thought of the atomic theory. Democritus adopted the ideas of Leucippus, his mentor. Democritus soon developed the idea of an atom. Democritus believed everything was made up tiny particles of matter called atoms. He chose this name because in Greek atom means indivisible. After Democritus Isaac Newton was the next scientist to contribute to the atomic theory. Isaac Newton began to realize that atoms were constantly moving and not stationary. In 1803 John Dalton added to the atomic theory. Dalton’s atomic theory was composed of five …show more content…
For example, Atoman is a popular character that can be found in many different popular comics. The invention of the femtometer made it possible and more realistic to measure an atomic nucleus. Without technology, there would not be many scientific discoveries. It is important to know and understand the atomic theory. Without an understanding of the atomic theory many aspects of science would be lost. It would be hard to understand why some things were happening the way they were or how it was possible. By understanding the atomic theory, we can eliminate some of the confusion and know what is going on. By understanding how the atomic theory works, it will be easier to grasp other, more complicated, scientific principles and theories. There are many different things factored into the atomic theory of today. Past scientists have added new principles and theories. Scientists are still making new discoveries today, and will continue to add to the atomic theory. There will probably never be an all inclusive theory that cannot be made any better. Technology has played an important role in the development of the atomic theory. It is very important to be able to understand the atomic
Physicist in the 1900 first started to consider the structure of atoms. The recent discovery of J. J. Thomson of the negatively charged electron implied that a neutral atom must also contain an opposite positive charge. In 1903 Thomson had suggested that the atom was a sphere of uniform positive electrification , with electrons scattered across it like plum in an pudding. (Later known as the Plum Pudding Model)
This showed that dissolved gases were mechanically mixed with the water and weren?t mixed naturally. But in 1803 it was found that this depended on the weight of the individual particles of the gas or atoms. By assuming the particles were the same size, Dalton was able to develop the idea of atomic weights. In 1803 this theory was finalised and stated that (1) all matter is made up of the smallest possible particles termed atoms, (2) atoms of a given element have unique characteristics and weight, and (3) three types of atoms exist: simple (elements), compound (simple molecules), and complex (complex molecules).
Technology is supposed to be seen as such an advancement and great accomplishment. What others may not always know is sometimes it isn’t all fun and games, it can be dangerous. As seen when we created the atomic bomb and guns, their only purpose is to destroy and cause pain to others. Although they are not always in use, they are a constant threat to our well being. We need to take into consideration the positives and the negatives of the technology we create today.
Although the atomic theory was developed in increments, George Johnston Stoney is most famous for contributing the term electron: fundamental unit quantity of electricity. Stoney would develop the concept fourteen years before he coined the term electron. He also made contributions to the theory of gasses, cosmic physics, and estimated the number of molecules in a cubic millimeter of gas.
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
The Atomic Theory is a theory that explains what matter is made of. The Atomic theory states that matter can’t be divided as it is made up of minute particles called atoms that cannot be separated. The very word atom is derived from the Greek word Atmos which means indivisible.
Attempts to organize the elements began in the late 1800’s. At this time, about sixty elements were known. Much advancement would have been impossible if the basic model of the atom was discovered. Great progress came from Dmitri Medeleev – a Russian chemist. His first draft of a periodic table was only the product of him attempting to summarize his knowledge of the elements. Although not all of Medeleev’s ideas were one-hundred percent accurate, they created a solid base to build upon. Marie and Pierre Curie; a married couple from Paris were successors of Medeleev. Their interests were radioactivity and discovered radium. The true pioneers of the periodic table were Ernest Rutherford and James Chadwick. Rutherford formed the hypothesis that, “An atom must have a concentrated positive center charge that contains most of the atom’s mass.” Following Rutherford, Chadwick exposed a segment of the nucleus that was had no charge: the neutron. With the basic knowledge of the structure of an atom, the tedious work of putting the rest of the puzzle together continued.
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.
I feel personally that the discovery of the atom was an important discovery for the world. With the discovery we are now able to answer questions we never even thought to ask. We are also answering questions some people asked long ago. We can now use our vast knowledge of the atom to measure the stars and be able to tell you what the stars are made of. The atomic discovery also helped us find our periodic table of elements. The periodic table of elements is a huge scientific chart that shows important facts with the help of its formation. There was a lot of constant scientific research that went into making the periodic table of elements and what it is today.
...deas and knowledge. Also, it is essential to understand in order to succeed in school, find information, and qualify for most jobs. New technologies continue to be created. The wisest step is to embrace the new technologies since they are unlikely to go away. Those who have the most knowledge of new technologies are able to accomplish more, and find more options available to them in life.
His theories and methods formed the future scientific research about the atom that still continues.All the other experiments people has done about the atom could not have been done without his help. He brung back the theory of the atom and got other people after him to keep doing research and contributing to the atomic theory.Without John dalton we probably would not have the same atomic theory and we might not even have it.I think john dalton played one of the biggest parts in the atomic theory.After john dalton there was,J.J. Thomson,Ernest Rutherford,and Niels Bohr.Dalton's most significant work was done between 1795 and 1805, but fame came later—when the importance of his atomic theory was realized. He became a member of the Royal Society in 1822, received its first Royal Medal in 1826, and was honored with a state pension in 1833, among other honors. He died on July 27, 1844, and 40,000 people attended his
Two important points need to made about such a broad definition of technology. First, although some writers address only computer and communications technology (e.g., Selfe 1999), technology is usually defined to include far more than instructional or communications technology (Custer 1999). Computers, e-mail, and Web TV are only one part of the array of devices and procedures we encounter in day-to-day life—everything from digitized kitchen appliances to transportation systems and integrated manufacturing. Second, science and technology, although closely related, are different (Sanders 1999). Science generates knowledge for its own sake, proposing and testing explanations. Technology, on the other hand, develops human-made solutions to real-world problems. Of course, science uses technology to generate knowledge and technology uses scientific knowledge to generate solutions, so the two are integrally connected; but they are different fields driven by different concepts and processes (Bybee 2000).
For instance, the ability to count, the memory to remember, the ability to learn through classrooms, and the ability to do things by hand. Science and technology both work together to improve the quality of human life. The inventions and discoveries of technology have given the human life many advantages and disadvantages. First, the invention of cars and other vehicles is now readily available and technology has advanced enough to be used every day and to work as a reliable tool for getting people and goods from one place to another in a relatively short space of time.
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...