Nuclear fusion reactions power the Sun. One such reaction involves the fusion of hydrogen-2 (deuterium) and hydrogen-3 (tritium):
hydrogen-2+hydrogen-3→helium-4+X+energy \text{hydrogen-2} + \text{hydrogen-3} \rightarrow \text{helium-4} + X + \text{energy} hydrogen-2+hydrogen-3→helium-4+X+energy(i) What is the name of the particle represented by XXX?
In the core of a star, what force causes the initial gravitational collapse of gas and dust clouds, raising the temperature enough for fusion to begin?
Describe one similarity between nuclear fission and nuclear fusion in terms of energy or mass.
Describe one difference in the behavior of atomic nuclei during nuclear fission compared to nuclear fusion.
Nuclear fission is widely used to generate electricity in commercial power stations.
Give one advantage and one disadvantage of using nuclear fission rather than fossil fuels (such as coal or gas) to generate electricity.