nuclear fusion:核聚变(nuclear fusion),又称核融合、融合反应、聚变反应或热核反应[1] 核是指由质量小的原子,主要是指氘或氚,在一定条件下(如超高温和高压),只有在极高的温度和压力下才能让核外电子摆脱原子核的束缚,让两个原子核能够互相吸引而碰撞到一起,发生原子核互相聚合作用,生成...
每日一词:核裂变与核聚变揭示了两种能量释放机制。在核裂变中,如铀-235的案例,当一个大原子核分裂成两个较小的核,如铷和铯,多余的质量以核结合能的形式转化为能量。这个过程在核电站中被利用,比如远古时期加蓬奥克洛的自然核裂变现象。相反,核聚变则是轻原子核合并的过程,如在太阳核心,氢原...
Nuclear fusion is the opposite process, in which two light nuclei merge to form a heavier one, yielding energy because the combination is lighter than the sum of its parts. Atoms heavier than iron can undergo fission, while lighter ones can fuse. Nuclear power stations generate energy from fis...
When the nuclei are merged, the excess energy is released. Like fission, nuclear fusion can also transmute one element into another. For example, hydrogen nuclei fuse in stars to form the elementhelium. Fusion is also used to force together atomic nuclei to form the newest elements on the pe...
Unlike fission, nuclear fusion also has the added benefit of being self-sustaining without creating harmful waste. However, achieving and controlling fusion has been a lot more difficult for scientists to crack than fission. One problem facing fusion technology is that in order to create self-susta...
Fission and fusion are two words that sound very much alike, but they're actually very different! In this lesson, find out what each one is and how they work to create nuclear energy. Create an account Table of Contents Atoms and Molecules Nuclear Fusion Nuclear Fission Fusion and Fission...
1.Nuclear energy must be a consideration for the future with the rapidly depleting supply of fossil fuels. This type of energy can be created through nuclear fission and nuclear fusion. Nuclear fission is the splitting of a heavy atom into two or more parts, releasing huge amounts of energy....
Describe what is meant by nuclear fission works and a chain reaction, Describe how nuclear fission may be controlled or uncontrolled, Describe what happens in nuclear fusion and nuclear fission, examples and step by step solutions, GCSE / IGCSE Physics,
The fission fragment anisotropies rise rapidly as the beam energy decreases through the barrier region. This is interpreted as showing that collisions with the tips of the deformed target nucleus lead to quasifission, collisions with the sides to fusion-fission.关键词:...
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