Make some helium create some energy and keep the Sun shining bright. Plans call for first-generation fusion reactors to use a mixture of deuterium and tritium heavy. Nuclear Fusion In The Sun Physics And Mathematics Nuclear Physics Teaching Chemistry The heart of the Sun has a temperature close to 157 million Kelvin. . Fusion powers the Sun and stars as hydrogen atoms fuse together to form helium and matter is converted into energy. The total radius of the Sun is 695510 5 km about 109 times radius of Earth. Combine swap and complete reactions for points. 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 protonsThe difference in mass between the reactants and products is manifested as either the release or absorption of energyThis difference in mass arises due to the difference in nuclear binding energy between. On the...