uranium is the heaviest metal because it has the greates number of electrons and protons in its atom. the elements change one from another( from the stage of gas to liquid and then to solid metals) according to the number of electrons snd protons present in them.since the electron and the protons are the particles that give energy , the atom of any element having a greater nume of electrons and prtons gives more energy
2006-12-19 05:56:12
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answer #1
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answered by Infinity 7
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Uranium has very high Atomic Mass number that plays a major role in the Fission process
e=mc^2 releases high energy with Uranium-235
2006-12-19 02:23:32
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answer #2
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answered by Santhosh S 5
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Think of an atom as being like two marbles which are at opposite ends of a very strong spring keeping them apart with an even stronger rubber band holding them together. What you have is a system under dynamic tension - the marbles are being pulled together by the rubber bands but kept from coming closer by the spring. Now if you add more marbles to this system - say three or four or nine, you are building bigger atoms. Of course you can see now that the more marbles you add, the more potential energy there is in this system. Uranium is like having a hundred marbles all held together with rubber bands and springs between all of them pushing them apart. Now lets say you heat up this "atom" so that at a certain temperature all the rubber bands melt and snap apart. What happens? The marbles all go flying everywhere - thats nuclear fission.
2006-12-19 01:40:19
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answer #3
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answered by Anonymous
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Uranium (and a few other elements) are unstable. All atoms are thought to have protons and neutrons in their nucleus. However, since protons are positively charged, it is not certain why they do not explosively repel each other. So far as I know, the most widely accepted theory is that the neutrons and quarks in the nucleus "buffer" the protons, shielding them from each other. The larger the atomic nucleus, the more protons have to be held together, and the more difficult it is to keep them there together. As a result, very large elements (such as uranium) tend to be unstable. Radioactive elements break apart spontaneously, and that is what gives off the energy. Smaller elements are stable enough that you have to smash them in a particle accelerator to break them apart - but they do still release energy when smashed.
2006-12-19 01:24:21
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answer #4
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answered by computerguy103 6
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It is just the way those atoms are. It is the way the universe is made. All we can do is learn how the universe is made and how it works and try to use what we find to the best benefit. Iron, for example, has no available energy locked up in its atoms that we could release, but it makes a good strong building material. So we use Uranium for power and iron for strength.
2006-12-19 01:20:56
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answer #5
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answered by campbelp2002 7
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First,fusion or fission are form of nuclear energy. Uranium is the form of fission WITH THE PRESENCE OF PLUTONIUM. That means, the nuclear contain both Uranium and plutonium where there are radioactive.Hence, they can split easily. Slipting of the radioactive atoms will release huge energy.
2006-12-19 02:39:15
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answer #6
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answered by rogerloh90 1
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Fission is easier in larger atoms such as Uranium, they can be broken up more easily than smaller more stable atoms.
As far as fusion goes, it's the opposite, it takes lower temperatures to fuse smaller atoms such as helium and hydrogen than larger atoms such as iron. That's why atoms much heavier than oxygen are formed in supernova that get extremely hot even for stellar standards.
2006-12-19 16:19:02
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answer #7
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answered by ZeedoT 3
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All atoms are the same really its their structure that makes them different. Uranium is used in nuclear reactors because of its mass (heavy) and percentage of isotopes (unstable atoms)
compare the atomic number of uranium with its mass. ie: the atomic number of uranium is 92 meaning a stable atom of uranium should have 92 protons and 92 neutrons=184. But the atomic mass of uranium in general is of 238
compare > 238-184=54 so you see there is a high percentage of isotopes here ( or unstable atoms).
2006-12-19 04:21:14
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answer #8
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answered by Yahoo! 5
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As you would be attentive to the international got here to appreciate that they try to augment uranium in basic terms after a dissident Iranian political team revealed that 5 years in the past. Then it grew to enhance into customary that the project has been 18 years long ( 18+5 = 23 years by ability of now!). between the main subject concerns is they have been hiding the project a majority of those years and on an analogous time as much as this 2nd , even for the time of the previous 5 years ) the are no longer keen to respond to the main questions made by ability of the Atomic power Org. Now think of returned please: Why would desire to a rustic that : a million - is brazenly saying yet another u . s . a . would desire to be wipped off the map ( and yet that u . s . a . has no longer something to do with its borders, pastimes, protection, ... ). 2 - Its rulers are customary to furnish money, workers and logistics for terribly very nearly all deadly terrorist movements against the U. S. 3 - Has have been given sufficient Oil and gas supplies for the subsequent 2 hundred years. attempt hidenly to augment uranium and is not any longer waiting to furnish it up even agaist economic incentives? I inform you why. Khamenei, the so-observed as appropriate chief of Iran, has mentioned to the commanders of the Islamic innovative Guards of Iran, that by ability of making the bomb our regime would be insured and defend for yet another a hundred years. He has sited the occasion of the North Korea. and that i think of he's suited. whilst Clinton became searching for the hidden web pages of Monica Levinsky, he became ignoring North Korea and that they made the bomb. I would desire to assert in brackets that yet another US democrat president , Jimmy Carter is maximum hated in Iran because of the fact he became the guy who supported ousting of the Shah and bringing mullahs to the flexibility. Even right this moment he's honourably asking to be the host of Khatami, our previuos .ba.stard president who deceived the West by ability of pretending to be an open-minded mullah and is now interior the U. S. to establish that mullahs' regime won't substitute.
2016-12-11 12:04:32
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answer #9
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answered by fearson 4
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first, you have to have what is known as critical mass. this means that you have to have sufficent material to sustain a chain reaction. material the size of a golf ball is not enough, material the size of a baseball is.
then, you have to start the reaction with an enormous amount of energy. once the reaction begins,, it sustains itself by releasing nucleons from the nucleus which strike other atoms to release more nucleons.
all atoms contain the atomic energy, but to be usefull, they have to sustain the reaction releasing energy to strike the next atom.
2006-12-19 02:46:04
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answer #10
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answered by Anonymous
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