September 2011 ISOTOPES Atoms of a given element which have the same number of protons but different numbers of neutrons are called isotopes. Thus‚ isotopes have the same position in the periodic table‚ the same chemical properties and the same atomic charge. The simplest example of an atom with different isotopes is hydrogen. The three isotopes of hydrogen are shown here: The increasing number of neutrons in the nucleus of the hydrogen atom adds mass to the atom and thus each isotope of a given
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ATOMIC THEORIES AND HISTORY * Democritus (Greek) - “atomus” meaning indivicible * Indivisible particles called atoms * John Dalton – MODERN ATOMIC THEORY: 1. All matter is made of tiny‚ indestructible particles called atoms (Democritus) 2. All atoms of a given element are identical (not accepted today bc isotopes) 3. Atoms are neither created nor destroyed in chemical reactions (Lavoisier) 4. Atoms of different elements form compounds in whole number ratios (Proust)
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World War II(Allied Powers)Research Paper "The supreme art of war is to subdue the enemy without fighting." Sun Tzu stated. World War II was a war of multiple wars. A war of thousands of battles. A war of thousands of rights‚ government power‚ & etc...‚ but World War II was a war of a major war within a war. War front all across the world. Different fronts and etc... The Allied Powers were the side trying to suppress the commotion & rebellion that Germany was doing towards the Treaty of Versailes
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by diversity? It is defined as the state of having different varieties. Our world are filled with different kinds of people. People are often judged by their religion‚ skin colour and basically the education they received. Whenever there are misunderstanding within diversity‚ it would only lead to one thing‚ war. Perhaps we may never taste the bitter experiences of war but history has shown us that whenever there is war‚ there will be sorrow. People have to cope with the feeling of having to loss
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bloody nation. During World War 2‚ Japan wants to take over the Philippines and the Pacific. Japan‚ taking over other nations‚ was at least successful at first due to an excellent military tactics. But later as United States‚ rival of Japan‚ found out the pattern of Japan’s movement‚ United States were able to attack Japan‚ causing lose of Japan’s newly gained territories in 1945. In this idea of Japan invading other countries successfully‚ Japan developed policy goals‚ military strategies and never
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The United States entered the war on the side of the Allies after Japanese attacked the US naval base at Pearl Harbor on the morning of December 7th‚ l941. World War II was fought between the Axis‚ which included Germany‚ Italy and Japan‚ and the Allied included Britain‚ United States‚ Soviet Union and France. More than 50 million people died during the war. It was the most terrible war in the history of humanity. Since America entered the war suddenly after Japan attacked Pearl Harbor‚ many people
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When you hear Americans in World War II you usually think of fighting or how we dropped the atomic bomb. But‚ what if I told you that women actually played a key role in World War II. They could join the military if they wanted. They took over the roles of men‚ such as their jobs. Some helped greatly from home by working in factories and rationing much needed supplies. Here are some of the things that women did to help us win World War II. World War two was the first war that women played a major
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The world is a lot smaller than it used to be. Today I can hop on a plane‚ and be in China tomorrow. I can call a friend in Africa and talk in real time. The world we live in is vastly different than the world our great grandparents grew up in. Advancement in technology is a tale as old as time. But this change has come about extremely quickly. However‚ there is a reason. The Cold War triggered an explosion of growth and interconnectivity. And it came close to triggering several other literal explosions
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Britain after Two World Wars There was a country once called “the empire on which the sun never sets”‚ and it used to be the most powerful countries in the world. It’s the Britain. Britain plays an extremely important role of the world in the modern history. It used to take the lead carrying out Bourgeois Revolution and have the original Industrial Revolution. After two world wars‚ especially the World War II‚ this old-fashion empire gradually goes downhill. Finally and eventually‚ it has
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Drop the Atomic Bomb to End World War II? Research Essay “Now I am become Death‚ Destroyer of Worlds.” J. Robert Oppenheimer‚ quoting the Bhagavad Gita “You should do your weeping at Pearl Harbor.” Harry Truman On the eve of World War II‚ scientists in Germany succeeded in splitting the nucleus of a uranium atom‚ releasing a huge amount of energy. Albert Einstein wrote to President Franklin Roosevelt and warned him that Nazi Germany might be working to develop atomic weapons. FDR responded
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