NUCLEAR FUSION IS THE COMBINING OF ATOMIC NUCLEI

To get energy from the element iron, should iron be fissioned or fused  

The mass of each nucleon in a hydrogen-2 nucleus is greater than the mass of each nucleon in a helium-4 nucleus, which results from the fusion of two hydrogen-2 nuclei. This lost mass has been converted to energy, which is why nuclear fusion is an eneigy-releas-ing process. 

The hydrogen bomb is another example of a discovery used for destructive rather than constructive purposes. The potential constructive possibility is the controlled release of vast amounts of clean energy. 

THE HOLY GRAIL OF NUCLEAR RESEARCH TODAY IS CONTROLLED FUSION 

Carrying out fusion reactions under controlled conditions requires temperatures of millions of degrees. As you can imagine, this poses many technical difficulties, especially when it comes to the large-scale production of energy. For example, one major problem is that any reaction vessel being used would melt and vaporize long before these temperatures were reached. 

J-Is mentioned earlier, a drawback to nuclear fi.ssion is the production of 

Fission and fusion are opposite processes,yet each releases energy. Isn t this contradictory  

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Nuclear fusion The combining of atomic nuclei is called nuclear fusion. For example, nuclear fusion occurs within the Sun, where hydrogen atoms fuse to form helium atoms. Fusion reactions can release very large amounts of energy but require extremely high temperatures. For this reason, they are also called thermonuclear reactions. 

Nuclear fusion is the process by which two light atomic nuclei combine to form one heavier atomic nucleus. As an example, a proton (the nucleus of a hydrogen atom) and a neutron will, under the proper circumstances, combine to form a deuteron (the nucleus of an atom of heavy hydrogen )- In general, the mass of the heavier product nucleus is less than the total mass of the two lighter nuclei. 

Fusion (atomic) n. A nuclear reaction involving the combination of smaller atomic nuclei or particles into larger ones with the release of energy from mass transformation. This is also called a thermonuclear reaction by reason of the extremely high temperature required to initiate it. 

The combination of two or more lighter nuclei to form a heavier nucleus is called nuclear fusion. The amount of energy released in fusion reactions is greater than the amount of energy released in fission reactions. However, a huge amount of activation energy (such as an atomic bomb explosion) is needed to initiate nuclear fusion reactions. 

A vast amount of energy is released when heavy atomic nuclei split—the nuclear fission process—and when small atomic nuclei combine to make heavier nuclei—the fusion process. In 1938, Otto Hahn, Fritz Strassman, Lise Meitner, and Otto Frisch discovered that ggU is fissionable by neutrons (Figure 13.8). In less than a decade, this discovery led to two important applications of this energy release accompanying fission—the atomic bomb and nuclear power plants. 

Fusion, nuclear. A nuclear reaction occurring at extremely high temperatures in which nuclei of light atoms, especially those of the isotopes of hydrogen, combine to form a heavier nucleus, accompanied by the liberation of an enormous amount of energy. It is the opposite of nuclear fission. See Nuclear weapons. 

FUSION. In the context of nuclear weapons and nuclear reactors, fusion refers to the process of combining of two light-nuclei atoms into a single heavier nucleus. This process is accompanied by the release of a substantial amount of energy. The light-nuclei atoms typically used in this process are deuterium and tritium. See also GEORGE HYDROGEN BOMB. 

Fusion power is a method of creating energy by fusing the nuclei of atoms together. During this process, called nuclear fusion, the nuclei of two or more atoms combine into one nucleus. The final nucleus actually ends up with less mass than the sum of the original nuclei. The "lost" mass is converted into energy. 

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