What is the difference between nuclear fission and nuclear fusion?

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Webster's New World defines fusion as "melting together." Therefore, nuclear fusion is the process by which more than one nuclei join together to form a heavier nucleus. Nuclear fusion is the process that powers our sun and the stars. Nuclear fission is the exact opposite process, in which the nucleus...
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Webster's New World defines fusion as "melting together." Therefore, nuclear fusion is the process by which more than one nuclei join together to form a heavier nucleus. Nuclear fusion is the process that powers our sun and the stars. Nuclear fission is the exact opposite process, in which the nucleus of an atom splits into two or more smaller nuclei. As of today, fission is what produces the energy in nuclear power. Unlike fossil fuel energy sources like coal and gasoline, which produce tremendous air pollution that evidence suggests is depleting the earth's ozone layer, nuclear energy produces no air pollution. But the waste products of nuclear fission are highly radioactive and remain so for hundreds of years. At this time, a world-wide research program is underway to harness fusion energy to produce electricity, which would also create radioactive waste material but it would decay much more rapidly. The only by-product of nuclear fusion power would be Helium, a harmless gas. read less
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Don't want to over express myself, just join and feel the experience.

In fission atom splits into many particles and in fusion many particles unite to form large one.
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CA Coaching Institute

Nuclear fission deals with break up of matter ; nulcear fusion deals with coming together of matter
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Professional Chemistry Teacher for IIT JEE/NEET UG,Online expert for IB/IGCSE/AP CURRICULUM

Spontaneous breaking of unstable heavier nuclei de due to bombardment of slow moving neutrons to individual fragments with release of large amt of energy is Nuclear fission.cCombination of smaller nucleides to form havier nucleide is called Nuclear fission.But relatively large amt of energy produced...
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Spontaneous breaking of unstable heavier nuclei de due to bombardment of slow moving neutrons to individual fragments with release of large amt of energy is Nuclear fission.cCombination of smaller nucleides to form havier nucleide is called Nuclear fission.But relatively large amt of energy produced in nuclear fusion.For equation's refer NCERT text books read less
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Teaching with Heart

Nuclear fission is breaking of the nuclear particles with emission of energy and nuclear fusion is fusing of 2 nuclear particles along with greater emission of energy
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Korchipati Just now In nuclear FUSION more than one nuclei of same atom or different atoms combine together to form a heavier nuclei or heavier density (molecule/atom) where as in fission nucleus of an atom splits into two or more smaller nuclei
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In nuclear FUSION more than one nuclei of same atom or different atoms combine together to form a heavier nuclei or heavier density (molecule/atom) where as in fission nucleus of an atom splits into two or more smaller nuclei
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Nuclear fission means splitting of big nucleus into smaller nuclei and nuclear fusion is process of combining two small nuclei into a big nucleus.
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FIDE Arbiter, FIDE School Instructor, National Instructor and Professional Chess Coach

Nuclear fission is dismantle of atom example in sun hence sun gives light and fusion is agglomeration process
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Bachelor of Engineering (B.E.) in Electronics & Communication

Nuclear fusion is the process by which more than one nuclei join together to form a heavier nucleus. Nuclear fusion is the process that powers our sun and the stars. Nuclear fission is the exact opposite process, in which the nucleus of an atom splits into two or more smaller nuclei.
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