ATOMIC STRUCTURE AND THE PERIODIC TABLE Theoretical change with respect to Dalton’s atomic theory 1. In 1803‚ atomic theory was revived by John Dalton a) matter is made up of tiny particles called atoms which cannot be created‚ destroyed or split b) all atoms of one element are identical:- same mass and same chemical properties c) a chemical reaction consists of rearranging atoms from one combination to another. d) When elements combine to form compounds‚ small whole numbers of atoms
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ALBERT EINSTEIN and the ATOMIC BOMB The physicist Albert Einstein did not directly participate in the invention of the atomic bomb. But as we shall see‚ he was instrumental in facilitating its development. In 1905‚ as part of his Special Theory of Relativity‚ he made the intriguing point that a large amount of energy could be released from a small amount of matter. This was expressed by the equation E=mc2 (energy = mass times the speed of light squared). The atomic bomb would clearly illustrate
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JC1 H2 Chemistry Atomic Structure Tutorial 1. How many protons‚ neutrons and electrons are there in 3+ ion? 2. Write down the electronic configuration of (a) Si (atomic no. 14) (b) Sc (atomic no. 21) (c) Co (atomic no. 27) 3. Which of the following ions contains an unpaired electron? A calcium ion B copper(II) ion C potassium ion D titanium(IV) ion 4. Some isotopes are unstable and decompose naturally. In one type of decomposition‚ a neutron in the nucleus decomposes to form a proton‚ which is
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of the atomic bombs at Hiroshima and Nagasaki The morning of 6 of August 1945 a single atomic bomb called “Little Boy” exploded over the city of Hiroshima at 8:15‚ devastating almost the entire metropolis. “Little Boy” was 10 feet long‚ weighted 9‚000 pounds‚ and was dropped from a height of 31‚600 feet‚ exploding at 2‚000 above Hiroshima with the force of 20K tons of TNT. A conventional bomb would have destroyed only the wooden structures within a 40 meters radius‚ but the atomic bomb that
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Throughout history very few events have bore the weight of the decision to deploy the first atomic weapons. Historians have placed the decision along racial‚ political‚ and tactical lines‚ while the reasons for the use of atomic weapons are still debated‚ the lasting effects of this event are just as important. Currently there are nine countries that possess the capability to deploy nuclear weapons; countries like North Korea and Iran are currently conducting limited research to development nuclear
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first ever atomic bomb was dropped on the Japanese city of Hiroshima. On August 9th‚ 1945‚ a second atomic bomb was dropped on the Japanese city of Nagasaki. In my opinion‚ the dropping of the atomic bombs “Little Boy” and “Fat Man” on Hiroshima and Nagasaki‚ was not justified. I believe it was not justified because of the effect it had on innocent civilians‚ the immorality of the operation and theories that the attack may have been racially motivated. First‚ the usage of the atomic bombs were
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Thank God for the Atomic Bomb In Paul Russell’s passage from Thank God for the Atomic Bomb‚ he describes how the atomic bombings of Hiroshima and Nagasaki were fully necessary. Russell agrees with President Truman’s decision to drop the atomic bombs because of the logical reasons. He gives examples that compare to the overall effect to America‚ and the positive things that happen to America such as the fact that the war would be over. I agree with Fussell’s opinion because the atomic bomb solved many
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Were the atomic bombings in Hiroshima and Nagasaki necessary to save allied lives and to end Japan’s threat to world peace? Did the resulting loss of life cost more than a deadly invasion of the Japanese mainland? In August 1945‚ the first dropping of atomic bombs in civilian areas of Japan killed hundreds of thousands of innocent people. Immediately following those bombings‚ Japan surrendered to the United States. The following essay summarizes the defense of the atomic bomb and its use‚ the arguments
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On August 6‚ 1945 the United States dropped the first atomic bomb ever on the Japanese city of Hiroshima. They also dropped a second bomb three days later‚which eventually ended World War ll. Was it the right thing to do? It created many controversial dilemmas on whether it was right or not. There are many people who oppose the use of the atomic bombs; though there are some that believe it was a necessity in ending the war. I think that there could have been other ways to end World War ll.
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WAS THE ATOMIC BOMBINGS OF HIROSHIMA AND NAGASAKI JUSTIFIED? A bomb which was equal to 13‚000 tonnes of highly-explosive bombs‚ used to make the Japanese surrender‚ but also killing many lives‚ cannot be justified. When the highly-explosive bombs were dropped in Dresden‚ everyone had thought of this as very affective. But imagine how bad the atomic bomb would be‚ which could destroy a city only just by its radiation‚ let alone the actual explosion. President Truman of America made a decision of
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