<Tr> <Td> (6i) </Td> <Td> He </Td> <Td> + </Td> <Td> </Td> <Td> → </Td> <Td> He </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> + </Td> <Td> p </Td> <Td> + </Td> <Td> n </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> + </Td> <Td> 12.1 MeV </Td> <Td> </Td> <Td> 57% </Td> </Tr> <Tr> <Td> (6ii) </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> → </Td> <Td> He </Td> <Td> (</Td> <Td> 4.8 MeV </Td> <Td>) </Td> <Td> + </Td> <Td> </Td> <Td> (</Td> <Td> 9.5 MeV </Td> <Td>) </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> 43% </Td> </Tr> <Tr> <Td> (7i) </Td> <Td> </Td> <Td> + </Td> <Td> Li </Td> <Td> → </Td> <Td> 2 He </Td> <Td> + </Td> <Td> 22.4 MeV </Td> </Tr> <Tr> <Td> (7ii) </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> → </Td> <Td> He </Td> <Td> + </Td> <Td> He </Td> <Td> </Td> <Td> + </Td> <Td> n </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> + </Td> <Td> 2.56 MeV </Td> </Tr>

Why does the sun fuse hydrogen into helium