ATOMIC PHYSICS The nuclear atom All matter is made up of atoms which consist of a central nucleus‚ surrounded by electrons. Inside the nucleus are protons and neutrons. Particle Relative mass Charge Location Proton 1840 + Nucleus Neutron 1840 0 Nucleus Electron 1 - Outside nucleus Proton or atomic number (Z) This is the total number of protons in the nucleus of an atom. Nucleon or mass number (A) This is the total number of protons and neutrons in the nucleus of an atom. Note: a nucleon
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U.S. chose to use the atomic bomb against Japan in hopes of ending the war swiftly and obtaining ultimate power over post-war decisions. They failed to realize the consequences that would follow their detrimental decision. Not only would the bomb kill thousands of innocent lives‚ consequently it would trigger an effect that would create a desire for other countries to possess an atomic bomb as well. Alternatives to the bomb were present‚
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Terrorism or Bomb Blasts Outline: 1. Introduction—Terrorism is the use of violence to get political demands. 2. Who is involved in the acts of terrorism and why? 3. The disadvantages of terrorism 4. How can we do away with terrorism? 5. Conclusion—Sincere and combined efforts are needed at international level to do away with terrorism without any discrimination. Essay: Terrorism is the use of violent actions in order to achieve political aims or to force a government to act. Today the world is very
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ideological struggle between Democracy and Communism that began shortly after the end of World War II and lasted until 1991. For the foreign policy of the United States‚ the cold war defined the last half of the twentieth century. It was a war of ideas‚ of threats‚ and of actual fighting in the countries of Korea and Vietnam‚ pitting western nations against the Soviet Union and China and their Communist allies. The 1940s and 1950s saw the cold war bloom into a period of unparalleled suspicion‚ hostility
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America justified in dropping the atomic bomb on Japan? The dropping of the atomic bomb on Japan ended world war two. The decision to do so was solely that of the Commander in Chief of the Armed Forces‚ Harry S. Truman. As President Truman had to ask himself whether or not it was justifiable to use a weapon of untold destructive force. The answer would change the world. I. The Dropping of the Atomic Bomb A. How was the atomic bomb created? 1. The atomic bomb was created in the
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GENERAL AND ENVIRONMENTAL IMPACTS OF NUCLEAR BOMBS According to the movie‚ TRINITY AND BEYOND: THE ATOMIC BOMB MOVIE‚ on July the sixteenth year 1945‚ at a site called "Trinity"‚ a plutonium bomb ’ was piled and taken up the top of a tower. This plutonium bomb ’ was exploded thereby generating a very high measure of flash light and a fireball that radiated through 0.6 kilometers (0.37 miles) in 2 seconds. The detonative energy or power was equivalent to 18.6 kilotons of TNT. This fume grew up
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Baldwin Honors Chemistry 3 November 2012 Historical Development of Atomic Structure Over the many years of the world’s history‚ there have been numerous developments and discoveries pertaining to atomic structure. Each of these breakthroughs gradually led us—step by step—to a deeper understanding of what makes up each and every atom. Because of this‚ our perception of an atom’s structure today is vastly different from the first idea of an atom’s structure from many centuries ago. From Dalton’s theory
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Democritus Democritus ( 460 a.c.– 370 a.c.) was an Ancient Greek philosopher born in Abdera‚ Thrace‚ Greece. He was an influential pre-Socratic philosopher and pupil of Leucippus‚ who formulated an atomic theory for the universe. His early deductions about the composition of the basic component of nature led him to believe in unseen and uncuttable particles ‚ called atomos. This Greek philosopher wondered how he could be sitting in one part of his
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Isotopes‚ sub-atomic particles and relative atomic mass Sub-atomic particles A subatomic particle is a particle smaller than an atom: it may be elementary or composite. In 1905‚ Albert Einstein demonstrated the physical reality of the photons‚ hypothesized by Max Planck in 1900‚ in order to solve the problem of black body radiation in thermodynamics. In 1874‚ G. Johnstone Stoney postulated a minimum unit of electrical charge‚ for which he suggested the name electron in 1891. In 1897‚ J. J. Thomson confirmed
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multiple scientists that contributed to the creation of the first Atomic Theory: Democritus‚ Antoine Lavoisier‚ Joseph Proust‚ and John Dalton. Dalton took the information that he had taken from the three scientists prior to him and put everything into one theory. The Atomic Theory is the most well-known and accurate theory we know right now. Later on in history‚ more scientists came to contribute to the understanding of the Atomic Structure. These scientists included: Sir J.J. Thomson‚ Robert Millikan
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