... P. McEvoy and Oscar Zarate, did not help me find the light at the end of the tunnel either; instead, it was more of a review of AP chemistry concepts, still leaving me in that long dark tunnel of grasping to understand higher dimensions. Being a good student, I had to continue my quest for information; reading ... to relevance, but several specific major breakthroughs allowed classical physics to give way to quantum theory. It began with Born, who showed that the location of the electron in the atom was a probability, not a fixed location. From there came the Heisenberg Uncertainty Princ...

• Word Count: 1896
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• Grade Level: High School

... existence of positive and negative charges in subatomic particles (Atomic Theory). The following year, Thomson discovered the electron using a cathode ray tube. He also originated the idea that the electron had a negative charge (Atomic Theory). In 1910, Robert Millikan discovered the exact charge of the electron by using the oil-drop experiment. He won a Nobel Prize in this year (Millikan's Oil Drop Experiment ... ). During 1912, Niels Bohr theorized that electrons did not spin into the nucleus. The theory also stated that electrons orbit at certain allowed distances and atoms radiate e...

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• Has Bibliography
• Grade Level: High School

... in Grammelholm Grammar School, which he attended until his acceptance into the University of Copenhagen in 1903. There he majored in physics but also took classes in mathematics, astronomy, and chemistry. While at the University, he received an award from the Academy of Sciences in Copenhagen for his experiments on surface tension using oscillating fluid jets. The work for this experiment ... in "Transactions of the Royal Society" in1908. From that point, his studies became more theoretical. His thesis was an entirely theoretical paper on the properties of metals using electron theory ent...

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... opinions from Harald to see his perspectives (Gale). In the autumn of 1903, Niels Bohr entered the University of Copenhagen. Niels chose physics as his major, and he also selected chemistry, philosophy, mathematics as his minors. Bohr's physics professor was Christian Christiansen, and he was a prominent physicist in Demark. Studying along with his professor, Bohr learned lots from professor Christiansen. Bohr ... education. He carried his Ph.D. thesis translation, after he arrived in Cambridge, Bohr worked under Joseph John Thomson, who won the Nobel Prize in 1906 for his discovery of ...

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... read and write and would frequently visit the local library, reading up about the things that interested him. At an early age, he assembled bottled substances, which he called his "chemistry set"(1). His Parents gave him a microscope that he used for examining these substances. This led to a major interest in science. In 1956 Bill moved to Butler, a town near Pittsburgh where ... College in Pennsylvania. There his passion for physics grew and he started to research under Wilfred Norris, the Physics department chairman for Juniata. What Phillips was researching was, the X-band Electron S...

• Word Count: 1023
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• Grade Level: High School

... these experiments. These new mechanics and its Copenhagen interpretations achieved by the end of 1927 were combined with other innovations such as the electron spin and the exclusion principle. These new innovations opened up the realm of the atom and enabled entirely new and profound advances in ... of the atom. They modeled this research off of the Balmer formula for the case of the outer helium electron and treated the excited helium electron the same as a hydrogen electron. After a very successful three years of study at the University of Munich, Heisenberg prepared for his oral exam...

• Word Count: 4391
• Approx Pages: 18
• Grade Level: Undergraduate

... these experiments. These new mechanics and its Copenhagen interpretations achieved by the end of 1927 were combined with other innovations such as the electron spin and the exclusion principle. These new innovations opened up the realm of the atom and enabled entirely new and profound advances in ... of the atom. They modeled this research off of the Balmer formula for the case of the outer helium electron and treated the excited helium electron the same as a hydrogen electron. After a very successful three years of study at the University of Munich, Heisenberg prepared for his oral exam...

• Word Count: 4427
• Approx Pages: 18
• Grade Level: Undergraduate

... these experiments. These new mechanics and its Copenhagen interpretations achieved by the end of 1927 were combined with other innovations such as the electron spin and the exclusion principle. These new innovations opened up the realm of the atom and enabled entirely new and profound advances in ... of the atom. They modeled this research off of the Balmer formula for the case of the outer helium electron and treated the excited helium electron the same as a hydrogen electron. After a very successful three years of study at the University of Munich, Heisenberg prepared for his oral exam...

• Word Count: 4218
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• Grade Level: High School

... , many scientists worked to formulate how the atom works. Which began in the early 1800's with John Dalton, to our current model of the electron cloud developed by Schrodinger. During this long process of the discovery the atom, took many models and scientists. The entire group of scientists who assisted ... he discovered negative and positive charged particles. He stated that the atom was made of smaller particles called, electrons and protons. In the discovery of the electron he used the Cathode-ray tube. As he researched he came up with a model of the atom, he stated that the atom was...

• Word Count: 914
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• Grade Level: High School

... , many scientists worked to formulate how the atom works. Which began in the early 1800's with John Dalton, to our current model of the electron cloud developed by Schrodinger. During this long process of the discovery the atom, took many models and scientists. The entire group of scientists who assisted ... he discovered negative and positive charged particles. He stated that the atom was made of smaller particles called, electrons and protons. In the discovery of the electron he used the Cathode-ray tube. As he researched he came up with a model of the atom, he stated that the atom was...

• Word Count: 937
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... absorption spectrum. The absorption spectrum has many practical applications Ch28.5 On of the postulates made by bohr in this theory of the hydrogen atom was the angular momentum of the electron is quantized in units of h=h/2pie of mevr=mh. The reason angular momentum is restricted t certain values is because the condition fro a de Broglie standing wave in an ... electron orbit is that the circumference must contain an integral multiple pf electron wavelengths. Ch28.6 In addition to the principle quantum number two other quantum numbers emerged from the solution of the wave equation l a...

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... to the time-independent SchrÖdinger equation, in an atom, electrons have discrete energy levels (orbits) that they can be in. An electron always takes up the lowest energy level possible. Paul Dirak, when solving the SchrÖdinger equation for the possible energy levels for electrons in ... particles, Encarta.com). Fermions are divided into two categories: leptons and quarks. Leptons and quarks are the most basic building blocks of matter. An electron is an example of a lepton. Each lepton and quark has an antiparticle partner, with the same mass but opposite charge. Quarks cannot be ......

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... , but no matter how hard you try, you could not outrun him/her? Well, this is the same dilemma that faces the electron and the PBG crystals. The electron is currently what a computer uses to transfer information. The PBG crystals are a new form of technology that can allow information to travel ... in sending the photon depends on a few different elements. The most important element is the elimination of many items used in transferring information via an electron. The electrons need a solution material in order to transfer from place to place. The most common solution is silicon. Silicon...

• Word Count: 941
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• Grade Level: High School

... charge. By measuring the effect of an electric field on single drops of evaporating oil, Robert Millikan ingeniously was able to measure the charge of a single electron and then to determine it's mass. By the beginning of the twentieth century, relatively very little was known for certain about the structure of an atom. ... . This changed in 1897, when the British physicist J.J. Thomson was able to determine the ratio of electrical charge to mass for an electron using a cathode-ray tube. This ratio of 1.76*10^8 coulombs per gram, was what enabled Millikan to calculate the mass of a singl...

• Word Count: 600
• Approx Pages: 2
• Grade Level: Undergraduate

... charge. By measuring the effect of an electric field on single drops of evaporating oil, Robert Millikan ingeniously was able to measure the charge of a single electron and then to determine it's mass. By the beginning of the twentieth century, relatively very little was known for certain about the structure of an atom. ... . This changed in 1897, when the British physicist J.J. Thomson was able to determine the ratio of electrical charge to mass for an electron using a cathode-ray tube. This ratio of 1.76*10^8 coulombs per gram, was what enabled Millikan to calculate the mass of a singl...

• Word Count: 579
• Approx Pages: 2
• Grade Level: Undergraduate

... an atom gains or loses energy, the change is expressed by the movement of electrons. When something passes energy on to an atom, an electron may be temporarily boosted to a higher orbital (farther away from the nucleus). The electron only holds this position for a tiny fraction of a second; almost immediately, it is drawn back toward the nucleus, to its original orbital. As ... it returns to its original orbital, the electron releases the extra energy in the form of a photon, in some cases a light photon. The earliest stimulated-emission device developed in 1954, it was a microwave mase...

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... how the hydrogen atom can move up and down the energy levels, one level at a time, and can never stop in between. Every hydrogen atom is made up of a single electron - proton system. Because the negative electron is attracted to the positive proton, potential energy is created inside the atom. He figured that the farther away the ... electron is from the proton, the greater the potential energy is inside. In conclusion, since hydrogen atoms emit light energy in specific frequencies, the hydrogen atom must be within a specific energy ... ...

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... how the hydrogen atom can move up and down the energy levels, one level at a time, and c! an never stop in between. Every hydrogen atom is made up of a single electron - proton system. Because the negative electron is attracted to the positive proton, potential energy is created inside the atom. He figured that the farther away the ... electron is from the proton, the greater the potential energy is inside. In conclusion, since hydrogen atoms emit light energy in specific frequencies, the hydrogen atom must be within a specific energy ... ...

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... ), and the energy of such a particle is proportional to the frequency of the light. There is a certain amount of energy (depending on the material) which is necessary to remove an electron from the surface of a material (work function). If the energy of a photon is bigger than this value, the ... electron can be emitted. In other words, if the energy of the photons is too small, an electron will not have enough energy to escape from the surface, regardless of the number of photons that strike the surface. From this explanation, the following equation results ... ...

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... Rutherford had just discovered the nucleus of the atom from analysis of his team's gold foil experiments. Niels made the main breakthrough by proposing that the orbital momentum of an electron in orbit around a nucleus is quantized, so that it can only jump from one allowed orbit to another, and not spiral steadily into the nucleus. The energy associated with these ... the line spectrum of the hydrogen atom. His explanation of the line spectrum of the hydrogen atom led Bohr formulate his famous principle of complementarity. This principle holds that the electron could be regarded in two...

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... does not hold up, because without all the many beings that are very close to me, my body would not be what it is. All the universes that form the electron "clouds" around the nuclei of my body are necessary for my atoms to continue to exist in a stable state. So there is no reasonable way that these beings are not ... might have. In quantum mechanics we encounter that the absolute square of the wave function represents the probability for observation of a certain result, for example, the probability for finding the electron within a certain volume of space. On this level of interpretati...

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• Grade Level: Undergraduate

... each outcome is. The uncertainty principle can be described through a simple experiment where a board with two slits is placed between a light bulb and a solid screen. There is an interference between electron particles and instead of two slits against the screen are displayed, multiple slits are shown, some diffused. Through wave-mechanics this shows that the waves from the slits are not ... light), nothing else can escape this gravitational pull. This region is what is known as a black hole. Due to the uncertainty of quantum m! echanics it is, however, possible for an electron or atom...

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... electrons of an atom would spiral into the nucleus almost immediately. This is obviously incorrect because if that were true it would make existence impossible. Quantum mechanics state that every electron exists on a discrete energy level. This can be proven by using a light bulb with multiple energy levels. If you switch from on energy level to another, the light does not ... short a time. The most important part of quantum mechanics is that particles do not have exact locations in space but instead have a probability of where they could be. A Diagram of electron probability. The dense...

• Word Count: 579
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... made quite clear when we used the donut to follow the more negative charge to the negative supply. Questions: 1) The field lines went from positive to negative and on both configurations that meant that the field lines traveled from right to left. 2) The electric field is more intense at two specific points. These are visible by looking at the graphs and ... ...

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... medal from the Royal Danish Academy of Sciences and Letters. He got this award for his analysis on surface tensions. In 1911 he received his doctorate for a thesis on the electron theory of metals. In March 1912, Bohr moved to Manchester, England, where he joined Ernest Rutherford and his group in studying the structure of the atom. He was among the ... ...

• Word Count: 684
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• Has Bibliography
• Grade Level: High School