<Table> <Tr> <Td> </Td> <Td> This article needs additional citations for verification . Please help improve this article by adding citations to reliable sources . Unsourced material may be challenged and removed . (January 2009) (Learn how and when to remove this template message) </Td> </Tr> </Table> <Tr> <Td> </Td> <Td> This article needs additional citations for verification . Please help improve this article by adding citations to reliable sources . Unsourced material may be challenged and removed . (January 2009) (Learn how and when to remove this template message) </Td> </Tr> <Table> <Tr> <Th_colspan="2"> Plutonium - 239 </Th> </Tr> <Tr> <Td_colspan="2"> <P> A 99.96% pure ring of plutonium </P> Complete table of nuclides </Td> </Tr> <Tr> <Th_colspan="2"> General </Th> </Tr> <Tr> <Td> Name, symbol </Td> <Td> Plutonium - 239, Pu </Td> </Tr> <Tr> <Td> Neutrons </Td> <Td> 145 </Td> </Tr> <Tr> <Td> Protons </Td> <Td> 94 </Td> </Tr> <Tr> <Th_colspan="2"> Nuclide data </Th> </Tr> <Tr> <Td> Half - life </Td> <Td> 24,110 years </Td> </Tr> <Tr> <Td> Parent isotopes </Td> <Td> Cm (α) Am (EC) Np (β) </Td> </Tr> <Tr> <Td> Decay products </Td> <Td> U </Td> </Tr> <Tr> <Td> Isotope mass </Td> <Td> 239.0521634 u </Td> </Tr> <Tr> <Td> Spin </Td> <Td> + ​ ⁄ </Td> </Tr> <Tr> <Th> Decay mode </Th> <Th> Decay energy </Th> </Tr> <Tr> <Td> Alpha decay </Td> <Td> 5.156 MeV </Td> </Tr> </Table> <Tr> <Th_colspan="2"> Plutonium - 239 </Th> </Tr>

What is the energy (in mev ) released in the alpha decay of 239 pu