Question

1) Energy produced in nuclear fusion is
much larger than that produced in nuclear fission. Why is it difficult to use fusion to produce energy?
2) What is activity of radioelement? ​

Answer 1

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1) Even though nuclear fusion provides larger energy than nuclear fission it is very difficult to carry out since it requires extremely high temperature, more than 10^8K. It cannot be used to produce energy

2) Rate of radioactive decay : It denotes the number of nuclei of atoms of radioactive element which decay in unit time. It is also called activity of radioelement

Answer 2

Answer:

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Explanation:

Nuclear fusion is a reaction in which two or more atomic nuclei are combined to form one or more different atomic nuclei and subatomic particles (neutrons or protons). The difference in mass between the reactants and products is manifested as either the release or absorption of energy. This difference in mass arises due to the difference in atomic "binding energy" between the atomic nuclei before and after the reaction. Fusion is the process that powers active or "main sequence" stars, or other high magnitude stars.