23 13 (a) In one nuclear fusion reaction, two different isotopes of hydrogen fuse together to produce helium (He) and energy. 1 1
.........
2 H
+
1
H
.........
He
Complete the equation by adding the correct mass number and atomic number to the helium nucleus. [1] (b) Nuclear fusion could be a major energy source in the future. Research on nuclear fusion is being done as a joint project between scientists in different countries. Suggest one advantage of working together in this way on this project. ................................................................................................................................................... .............................................................................................................................................. [1] [Total: 2]
Question 14 begins on page 24
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