Solution: Orbital angular momentum L = √l ( l + 1 )h where h = h/2π ∴ L for p electron = √1 ( 1 + 1 )h = √2h ∴ (A) Problem: For which of the following species‚ Bohr theory doesn’t apply (A) H (B) He+ (C) Li2+ (D) Na+ Solution: Bohr theory is not applicable to multi electron species ∴ (D) Problem: If the radius of 2nd Bohr orbit of hydrogen atom is r2. The radius of third Bohr orbit will be (A) 4/9r2
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Manhattan Project he knew what he was saying. Especially since he knew the destructive force of the weapon he helped create. Although it was not the first‚ the atomic bomb was a weapon that the world had never seen before. With the ability to wipe out an area in seconds and leave that said area in shambles for years later. This power gave the atomic bomb the title of a weapon of mass destruction. Even though they are one of the newest threats to the world; weapons of mass destruction are the most dangerous
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The invention of the atomic bomb certainly brought extreme fear into Canadians’ lives after revealing its astonishing power through the massive destructions done at Hiroshima and Nagasaki. Although most people did not speak of this fear but it can be clearly seen throughout the cold war when the arms race between the two super powers at the time‚ the United States and the Soviet Union‚ split the world into two halves. On one side‚ there was the communist countries allied with the Soviet Union‚ and
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The US propelled atomic weapons in the mornings of August sixth and August ninth of 1945 to Japan‚ producing a huge number of honest deads‚ without tallying the back ones caused by the radiation that was in the place. Atomic weapons are probably the most huge executing gadgets weapons that have ever existed. This weapon can burn people that are in the epicenter of the bomb and the spots encompassing it in not more than seconds. This weapon ought to be dispensed with from earth since it is a peril
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In early August 1945 atomic bombs were dropped on the Japanese cities of Hiroshima and Nagasaki. These two bombs quickly yielded the surrender of Japan and the end of American involvement in World War II. By 1946 the two bombs caused the death of perhaps as many as 240‚000 Japanese citizens1. The popular‚ or traditional‚ view that dominated the 1950s and 60s put forth by President Harry Truman and Secretary of War Henry Stimson was that the dropping of the bomb was a diplomatic maneuver aimed
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In 1941‚ Japan bombed Pearl Harbor. This prompted the United States to enter World War II. Four years later and still at war‚ the President Franklin Roosevelt received a letter from Albert Einstein explaining efforts in Nazi Germany to build an atomic bomb. The United States Government soon after began a very secretive project known as “The Manhattan Project”. They developed a new weapon‚ which was called the nuclear bomb. The United States made two of these weapons‚ “Little Boy” which consisted
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Oppenheimer and the Atomic Age Born April 22‚ 1904 J. Robert Oppenheimer‚ an American theoretical physicist‚ was a significant individual of the 20th century for his contributions to the Manhattan Project. Often referred to as the father of the Atomic Bomb‚ Oppenheimer led the scientific research and construction of the nuclear warhead from 1942 to 1945 (www.atomicarchive.com). This bombs’ creation not only had an initial devastating impact on human life but brought about the atomic age‚ causing controversy
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On August sixth 1945‚ president Truman gave the indolent order to drop the two atomic bombs out of the Enola Gay and on the city of Hiroshima and Nagasaki. I believe that the United States was not justified to drop the atomic bombs. Theses bombs killed up to 140‚000 innocent Japanese citizens and injured thousands more. Thousands more innocent lives suffered third degree burns and many other type of injuries. The two bombs destroyed many houses‚ buildings‚ and crops. The United States also invested
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After the atomic bomb fell on Hiroshima‚ about 70‚000 people died in the initial blast. At the end of 1945‚ casualties reached over 100‚000 because of radiation sickness. Five years later‚ casualties totaled to about 200‚000 because of cancer and other diseases caused
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alerted the US government to the possibility of an atomic bomb. President Roosevelt then set up a program to study uranium and the possibility of an atomic bomb. This started the series of events leading to the atomic bomb. American scientists‚ under this committee discovered that uranium-235(U-235)‚ the type used in the atomic bomb‚ is one part in one hundred and forty of normal uranium. Almost all of the initial work and studies into uranium and atomic bombs happened in New York‚ and as studies advanced
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