Which is which in nuclear fission and fusion?
486419
uncontrolled fusion requires high temepratures.\n1 matches with (a)\n\nControlled fission is used in nuclear reactors to make electricity\n2 matches with (d)\n\nControlled fusion is used in hydrogen bombs\n3 matches with (c)\n\nUncontrolled fission is used in nuclear bombs\n4 matches with (b)
728471
Geomagnetic field reversals and changes in intensity are understandable from an energy standpoint as natural consequences of intermittent and/or variable nuclear fission chain reactions deep within the Earth. Moreover, deep-Earth production of helium, having 3He/4He ratios within the range observed from deep-mantle sources, is demonstrated to be a consequence of nuclear fission.
339047
It is just a reference to E=mc^2.  It can be through fission or fusion, so yes you are surely correct.
64677
Hmm, I don't like that previous answer.  There is a certain amount of energy holding together an atom, say uranium 235.  When bombarded with neutrons, the atom breaks apart into 2 different atoms and releases energy.  No energy is created or destroyed, as it only changes the form.
288934
Yes it does. In fission, the bigger nuclei breaks into smaller nuclei. If you add up the masses of the smaller nucleii, you will find it short of the bigger nuclei. This is called mass defect. This mass is converted to energy by the relation E=mc^2 . In fusin, two smaller nucleii fuse to form a bigger nuclei, which has less mass than the masses of the two smaller nucleii added. This mass defect is converted to energy here by the equation e=mc^2.
911178
fusion \n\nIT CONVERTS HYDROGEN INTO HELIUM
807371
hydrogen atoms fuse to form helium atoms\n\n2.a high temperature,rather a very high temperature\n\n3.i do not u/stand the question.however if the question is where do you find fusion reaction the answer is in the stars and sun\n\n4.similarities \na.both are nuclear reactions\nb.both generate enormous amount of energy\nc.both produce a energy in the form of heat\nd.both are non conventional sources of energy\ndissimilarities\na.fusion is pollution free\nb.fusion calls for very high temperatures to start the reaction\nc.in fusion lighter nuclei combine to form heavier nuclei.in fission heavier nuclei break \nd.fission is easier to control and produce as compared to fusion
1129833
Fusion is a process when two atoms are forced to combine outside of normality. This means when extremes occur, such as super-heat, high eletromagnetic radiation, high voltage, High photonic electromagnetic radiation, a mixture of extremes, ect, you can influence two atoms that normally would never combine, combine and form other atoms but release electrons, neutrons, protons (whatever else). This repelling of each other's force causes energy. Sometimes you get, seemingly, more energy than you put into it due to chain reactions ( if you can get it at this stage, and assuming you can control it). There are infinite atom combo's but normally you will see hydrogen and helium as the prime candidates.
982438
http://en.wikipedia.org/wiki/Nuclear_fission\n\nEffectively generating energy from breaking down an element to at least two smaller elements.\n\nThis is the reaction that takes place in bombs and power plants. This is distinct from fusion
464539
The answer is a\n\nBecause when atom are split or fuse together there masses are always less then the sum of the reactants. the lost mass is transformed into energy. The energy is in the form of the following: Gamma rays, ( very high frequency  x-rays) Beta particles ( a electron shooting away from a atom), or Alpha particles ( a helium nucleus traveling at a very high speed) along with the resulting atoms that are split or fuse; moving at a  higher speed than before. That makes a lot of heat ( which is the definition of heat: a lot of atoms or molecules in motion.) This is in accordance to Einstein famous formula E= MC square. This is what powers our sun and the stars in space by Nuclear fusion, along with the interior of our planet and nuclear reactors and  atomic bombs by nuclear fission.
282322
Alpha radiation-ejected nucleus-heavy very short range\nBeta-ejected electrons- lighter short range\nGamma-electromagnetic-very long range\nShockwave-a wave of sonic energy generated by the expanding detonation\nwind-from the detonation\nwind-from the suction of the rising hot gases\nFallout-radioactive materials that were thrown high into the atmosphere and are returning to earth.\n\nPhysics- in a fission device a uranium 235 core is compressed to a critical mass by explosives around it then proton are fired into the core. Some of the nuclei fall apart and release 2 high energy neutrons which collide with other nuclei causing a chain reaction that grows at an exponential rate (2^2).\n\nin a fusion device the fision reaction is used to compress a hydrogen pellet until the hydrogen atoms fuse into helium atoms. 2 hydrogen atoms become neutrons while 2 remain as electron proton pairs. The 2 that fuse into neutrons give up the energy of the orbiting electron.
50985
There are other forms of energy, yes. However as far as nuclear energy, no. Fission is the discarding of atoms (unpredictable left uncontrolled, hence the rods at a plant). Fusion is the opposite. they are considered A and B.Check this address and all will be answered:                  http://theory.gsi.de/jap-ger-workshop/talks/dmocelj.pdf#search='nuclear%20physics%2C%20calculations'
44111
Ok well the current JET (Joint European Torus) in Culham, Oxfordshire, UK is the biggest experimental fusion reactor in the world. Although the ITER is set to overtake it in France. There are many different fusion reactions that we can use, although the most preferable one is Deuterium-Tritium because it is one of the easist to kick-start. The big advantage with fusion is its (relative) safety and phenomenal power output. The amount of useful energy which we can obtain from nuclear fusion is staggering. It does not release pollutants into the atmosphere and although there is a radioactive by-product, this is not a problem since it is easy to deal with (unlike radioactive uranium and plutonium). The major disadvantage is the cost. The current fusion project in France almost didn't happen. Both Europe and Japan wanted it on their territory, but couldn't come to a compromise. In the end Europe insisted that they take the project alone and Japan can join in if they wish! The new reactor is in the stages of being built now but it will be some time before it is operational. And in its current state it is only in an experimental stage; it is not yet in a commercial stage, and won't be for many decades. However it is the perfect solution for producing electrical energy, with huge benefits (apart from the intial cost). See weblink for more detailed information.
488164
It is lyophillic sol.\nHydrogen bomb is based on fusion. but to start the fusion the temp required is in millions. So to acquire that temp the fusion is triggered by atom bomb(fission)
811375
actually....no.... \nthe power range of nuclear fission and the operational MHZ of a generator and completely differant. Your comapring apples and oranges.
1137622
Fission, Fusion, FFF, Neutron, and dirty.\n\nFission uses something like uranium or plutonium that gets split apart and releases energy.\n\nFusion uses hydrogren to release energy similar to the sun by combining two hydrogens to create a helium.\n\nThe FFF (Fission-Fusion-Fission) is a mix.  A small fission bomb kicks off a fusion reaction which then kicks off another fission reaction.  Fun stuff.\n\nThe neutron bomb is a small fission bomb type, that releases a lot of neutrons which don't harm surrounding structures, but vaporizes water much like a microwave does, cooking people and animals from within.\n\nThe dirty bomb does not require any nuclear process, it just uses radiation.  The effect is much like the neutron bomb, it doesn't do a lot of damage to buildings, but it does hurt people as radiation is quite deadly.\n\nI can't think of any others off the top of my head.
960805
Good. Tritium has 2 neutrons and 1 proton where-as deuterium has one proton and one neutron. When they fuse they form Helium-4 which has 2 neutrons and 2 protons. This reaction releases one neutron and heat (as it's an exothermic reaction). Imagine tons of tritium and deuterium fusing, that's a lot of heat isn't it? It's the heat that does the damage. But it's hard to set it off. You'll need a small fission bomb to set off the fusion reaction.